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Plugable Thunderbolt™ and USB-C Dual Monitor Docking Station, 96W Laptop Charging
$239.95 USD
SKU: TBT3-UDZAmazon Rating : (898 Reviews)
Features
- 14-in-1 Expansion— 40Gbps Thunderbolt dock expands to 2x HDMI or DisplayPort monitors each supporting up to 4K 60Hz, 1x USB-C, 6x USB-A, Gigabit Ethernet, Audio In/Out, SD/microSD, all through a single included 2.6ft 40Gbps certified Thunderbolt cable
- 100W Max Power— The TBT3-UDZ laptop dock delivers up to 100W PD (96W certified) laptop charging rate for Thunderbolt and USB-C devices, while also safely charging laptops with lower charging requirements. Maximize compatibility with Thunderbolt and USB-C systems
- Versatile Dual 4K Displays— This dual DisplayPort and dual HDMI Thunderbolt dock design is the first Thunderbolt 3 docking station to offer a choice to mix and match HDMI or DisplayPort for dual displays. Drive up to two 4K 60Hz displays via Thunderbolt 3, Thunderbolt 4, or USB4. Supports up to two 1080p 60Hz displays via USB-C
- Compatibility— Thunderbolt dock compatible with M1/M2/M3 Pro/Max, 'Base' M4 Pro/Max and Intel CPU Thunderbolt 3 Macs like the MacBook Pro 16". Supports Windows systems with Thunderbolt, USB4, and USB Type-C. Certain base model Apple Silicon chips support single extended display. Capabilities on non-Thunderbolt USB-C laptops are dependant on host system; only one external screen on base M1 / M2 / M3 chips
- 2-Year Coverage, Lifetime Support— Every Plugable product, including this docking station, is covered against defects for 2 years and comes with lifetime support. If you ever have questions, contact our North American-based team - even before purchase
$269.95
Amazon Rating : (375 Reviews)
Plugable's Thunderbolt 3 and USB-C Dual Display Dock with 100W Host Charging (TBT3-UDZ)
The TBT3-UDZ is Plugable’s most versatile, powerful and accessible docking station yet. Its unique, exclusive design allows users to connect up to two 4K displays using either HDMI or DisplayPort without the need of external adapters - the first Thunderbolt 3 docking station to offer this flexibility of display types. Using the Intel Titan Ridge chipset and Plugable's custom design, the TBT3-UDZ delivers a combination of more port options, fastest charging up to 100W, and widest PC and Mac compatibility of any dock on the market.
- Up to 100W Power Delivery to host (96W Certified)
- 2x DisplayPort and 2x HDMI ports (for a total of two displays)
- 7x USB ports: 1x USB-C 10Gbps port, 1x USB 10Gbps port, 5x USB 5Gbps ports
- 1x SD card slot
- 1x MicroSD card slot
- 1x Gigabit Ethernet port
- 1x Combination audio input/output jack
With this dock, we set out to solve customer pain points that users have been dealing with for a long time now. These include the difference between Thunderbolt 3 and USB-C, which have identical looking ports, HDMI versus DisplayPort, USB-C or USB-A peripheral ports, and the different levels of charging wattage offered. The TBT3-UDZ eliminates any confusion between these different types of technologies by offering a simplified solution that answers these questions for you.
DisplayPort and HDMI
Plugable's unique design allows users to connect up to two additional 4K displays with your port of choice using either HDMI or DisplayPort without the need of external adapters.
This is the first Thunderbolt 3 docking station to offer this flexibility of display types. Made to adapt to the user's setup, the TBT3-UDZ is unparalleled in flexibility.
Vertical and Horizontal
The horizontal or vertical design of the TBT3-UDZ goes against the grain of other docking stations. Fit the dock in any space standing up or lying flat so there's more room for monitors and peripherals, while keeping a productive and clean workspace.
The dock includes a sturdy, detachable base for vertical orientation, which ensures a stable, sturdy setup no matter how many cables you connect.
Thunderbolt 3 and USB-C
The TBT3-UDZ is built upon the latest Intel Titan Ridge chipset, enabling the widest compatibility with Thunderbolt 3 and USB-C laptops on the market. Thunderbolt 4 laptops are also supported.
Its dual connectivity removes frustrations from having to pick a docking station for either type of laptop while delivering unrivaled performance.
100W Charging
The TBT3-UDZ’s 100W* Power Delivery is the highest charging wattage to be implemented in any universal Thunderbolt 3 docking station. With Apple now releasing notebooks with 96W chargers, such as the Intel based 16” MacBook Pro, the TBT3-UDZ is the best docking station to pair with these devices for unrivaled performance.
Charge your laptop at noticeably faster speeds - so you’ll have one less thing to think about and you can say goodbye to your other power supply.
*To strictly comply with 100W regulatory limits with margin, Thunderbolt certification limits to charging to 96W.
Dual 4K Displays
Expand your workspace with 40Gbps speeds from this Thunderbolt docking station dual monitor solution to drive any combination of two DisplayPort or HDMI monitors.When connected to compatible Thunderbolt 3, Thunderbolt 4, or USB4 Mac* and Windows systems:
- Drive up to two 4096x2160 @ 60Hz displays (lower resolutions also supported)
When connected to a compatible Windows USB-C system:
- Drive up to two 1920x1080 @ 60Hz displays or drive one 4096x2160 @ 30Hz display
*Apple M1/M2 (non-Pro/Max) systems only support a single external display. M3 can support dual with laptop lid closed
*Apple Base M4, M4 Pro/Max supports dual displays.
Flexible Connectivity
The docking station features 14 ports making it one of the most comprehensive docking stations available, ideal for the most demanding of professions that require multiple inputs and peripherals.
With a mix of five USB 3.0 (5Gbps), one USB-A (10Gbps) and one USB-C (10Gbps) ports, you’ll be able to connect your phone or USB flash drive to the easily accessible front USB and USB-C ports, then connect other USB peripherals such as a keyboard or mouse to the back of the dock.
Note: The USB-C port on the front of the dock supports data transfer only (no video). When connected to a USB-C laptop the front USB-C and USB-A port may be limited to 5Gbps depending on host specifications.
The TBT3-UDZ offers flexibility to connect to either Thunderbolt 3 or USB-C only systems. Compatibility for Thunderbolt 3 and USB-C can be complex, please view the below information prior to purchasing and feel free to contact us at support@plugable.com for compatibility assistance if needed, we'll be happy to help!
Please note, dock capabilities are reduced when connected to USB-C only systems compared to Thunderbolt 3 systems:
Thunderbolt 3, Thunderbolt 4, and USB4 Systems:
- PC: Windows 10 or 11 with Thunderbolt 3 or 4 and Power Delivery support (PD required for charging)
- MAC: macOS High Sierra 10.13 or later with Thunderbolt 3 or 4 (M1 / M2 / M3 base model Macs are limited to a single extended display, M1 Pro/Max, M2 Pro/Max, M3 Pro/Max support dual displays)
- LINUX: Not supported
USB-C Systems (No Thunderbolt):
- PC: Windows 10 or Windows 11 with Alternate Mode video output support (required for video functionality) and Power Delivery charging support (required for charging)
- Multi-display capabilities will vary depending on host system graphics card support. For more information see: What are the display output capabilities for the TBT3-UDZ?
- MAC: 12" MacBook Retina models (limited to a single extended display or dual mirrored displays up to 4096x2160 @ 30Hz)
- LINUX: Not supported
- CHROME: Not supported
Important Notes:
- Apple M1 / M2 / M3 (base model) based MacBook, Mac Mini, and iMac systems (non-Intel processors) only support a single external display via Thunderbolt ports (this is a limitation of the M1 / M2 / M3 base model graphics card, M1 Pro/Max, M2 Pro/Max, M3 Pro/Max support dual displays)
- Some Thunderbolt 3 Windows systems will not support dual displays (only one DisplayPort stream). Please check with your system manufacturer to verify dual displays via Thunderbolt 3 are supported
- Not all systems with USB-C or Thunderbolt 3 support charging from these ports. Use of separate laptop power adapter may be required. Please check with your system manufacturer to verify Power Delivery charging is supported
- Dock capabilities are reduced when connected to USB-C only systems. When using the dock in USB-C mode (no Thunderbolt support from system) the front 10Gbps USB-C and USB-A ports will be limited to 5Gbps operation. Display support may also be limited to a maximum of two 1080p @ 60Hz displays (dependent upon system graphics card DisplayPort implementation)
- Windows systems may require updated Thunderbolt drivers, Thunderbolt NVM firmware, system UEFI BIOS, and graphics card drivers from the system manufacturer (Apple systems provide this automatically)
- Connect power cable to Thunderbolt 3 dock.
- Connect the included Thunderbolt 3 cable to the dock port with the computer icon, and then connect the other end to the Thunderbolt 3/USB-C port of your host system.
- (Windows only) Approve the new device with the Thunderbolt utility on your computer. Click here for more information.
Questions? We're here to help! Please reach out to us at support@plugable.com
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USB Port Types
USB-A
pietz, CC BY-SA 3.0 , via Wikimedia Commons
This is the standard USB connection that most computers offered prior to the introduction of USB Type-C (USB-C). Even after the introduction of USB Type-C, this is still quite common.
It can provide data transfer rates up to the USB 3.1 Gen 2 (10 gbps) specification depending on the host and device, but does not directly support video in the way that USB-C Alternate Mode does. This limitation makes DisplayLink USB graphics adapters and docking stations ideal on systems that do not have USB-C, or in instances where more displays are needed beyond available video outputs of a PC.
USB-B
Fred the Oyster, CC BY-SA 4.0 , via Wikimedia Commons
IngenieroLoco, CC BY-SA 4.0, via Wikimedia Commons
This type of connection comes in a couple different styles depending on whether USB 3.0 and higher transfer rates are supported (bottom graphic). Usually this type of connection is used to plug into USB devices that do not have a fixed cable connected, such as USB docking stations, USB hubs, printers, and others.
USB Mini-B
Fred the Oyster, CC BY-SA 4.0 , via Wikimedia Commons
One of the first connectors for charging a smartphone, wireless game controller (such as the Sixaxis and DualShock 3), and other small devices such as external hard drives. Not commonly used today, but is still used in some cases. Most devices using USB Mini B are using USB 2.0, though a USB 3.0 variant does exist. This specification also added USB On-The-Go (OTG) functionality, though it is more commonly implemented with Micro USB.
USB Micro-B
Fred the Oyster, CC BY-SA 4.0, via Wikimedia Commons
IngenieroLoco, CC BY-SA 4.0 , via Wikimedia Commons
A smaller connector that serves many of the same uses as the Mini B connector, with added optional features such as Mobile High-Definition Link (MHL) to allow devices like smartphones to output video to larger displays without requiring a dedicated port for video output.
The larger variant of USB-B is most commonly used for external hard drives for higher 5Gbps transfer rates.
USB-C, Thunderbolt™ 3, and Thunderbolt™ 4
Niridya , CC0, via Wikimedia Commons
The most recent USB connection, USB Type-C (USB-C), represents a major change in what USB can do. The connector is smaller, can be connected in two orientations, is able to carry substantially more power and data, and can directly carry video signals of multiple types (HDMI, DisplayPort, etc.) Intel has also adapted the USB-C connector for use with Thunderbolt 3 and Thunderbolt 4.
It is important to note that while all Thunderbolt 3 and Thunderbolt 4 connections are USB-C, not all USB-C connections can be used with Thunderbolt 3 or Thunderbolt 4 devices.
More details regarding physical USB connections can be found on Wikipedia . The graphics depicted here are adapted from Wikimedia Commons by various artists under the Creative Commons Attribution-Share Alike 3.0 Unported license.
What are the details regarding 96W Thunderbolt-certified Power Delivery and 100W peak charging rate?
IEC power requirements for this class of device require that charging via USB not exceed 100W peak charge rate for more than 5 seconds, and so Thunderbolt certification requires a 4W margin to maintain this IEC compliance. Because charging output from any device will always have some amount of variance, implementing a 96W Power Delivery profile combined with robust circuit design ensures the TBT3-UDZ will meet these requirements and achieve 96W sustained charging, with a peak rate of 100W. We are unaware of any real-world scenarios where this will affect charging behavior, but will certainly provide updates if we learn of any edge cases.
Is my ethernet adapter compatible with iPhone?
Our Plugable ethernet adapters are compatible with USB-C iPhone 15 and 16 / Pro / Pro Max running iOS 17 or newer. Our ethernet adapters are plug-and-play on iPhone, and ethernet connection is identified in the iOS settings app.
These following ethernet adapters from Plugable have been tested and verified to work with iPhone:
Understanding and Troubleshooting Network Performance
Computer networking is a complex topic. In this article, we'll be taking a deep dive on the nuances of network performance for those who need some additional explanation while striving to be concise, and to educate users of various experience levels relating computer hardware and computer networking.
If you just need to know how to perform a network performance test/benchmark, jump down to configuring iPerf.
Core Network Concepts
LAN vs WAN
With regards to network performance, it is crucial to first separate whether an issue is with Wide Area Network (WAN) performance, or if the issue is with Local Area Network (LAN) performance.
Your LAN is essentially the network inside your home or business. Many homes use a combination modem/router device provided by their Internet Service Provider (ISP). In some cases, especially in businesses, you may have a separate modem and router, along with other equipment connecting to the router such as a network switch.
Your modem, and the connection it establishes to your ISP—whether through coaxial cable, fiber, phone lines, or long-range wireless—essentially marks the point between the WAN and the LAN. The connection your modem makes to your ISP is the WAN, and any devices you connect through your router behind that modem belong to the LAN.
Link Rate
Almost every type of connection your computer makes to any piece of hardware will have a link rate of some kind. The link rate establishes how fast data can possibly be transferred across any given connection, but it does not guarantee how fast the hardware on either end of the connection will actually transfer data.
The concept of link rates, and their related bottlenecks, is likely best conveyed by giving an example of what connections might be involved in transferring a file from one computer on your LAN to another.
- 800Mbps—The file source is a USB 3.0 thumb drive capable of 100MB/s (800Mbps) read/write.
- 480Mbps—The USB 3.0 thumb drive is plugged into a USB 2.0 port on the PC, which has a maximum throughput of 480Mbps
- 1000Mbps—PC1's Ethernet connection establishes 1Gbps (1000Mbps) link to the router via Ethernet
- 300Mbps—The router connects to a second PC (we'll refer to this as PC2) via Wi-Fi, and it has established a 300Mbps link to the Wi-Fi adapter on PC2
- 480Mbps—The Wi-Fi adapter on PC2 is connected via a USB 2.0 port. The link rate of the USB connection to PC2 is at 480Mbps
- 6000Mbps—PC2 is going to store the file on an internal hard drive with a link rate of 6Gbps
- 1600Mbps—File Destination: SATA hard drive capable of 200MB/s (1600Mbps) read/write.
Following this chain, we see that 300Mbps is the slowest link rate established. This means that, regardless of the link rates established elsewhere, the absolute maximum the data can possibly be transferred is 300Mbps.
if we were to change the Wi-Fi connection to a wired Ethernet connection capable of 1Gbps, our performance bottleneck would then become the USB 2.0 connection to the USB drive where the file is stored.
Ports and Interfaces
Interfaces
A network interface represents connections, whether wired or wireless, that are made to form a network between devices.
Ports
Some may refer to physical hardware connections as "ports". For the purposes of networking, ports are logical constructs that can also be referred to as "network ports". Each network interface has 65,535 of these logical ports. Each port on a network interface is a separate data connection.
Benchmarking Network Adapter Performance
To properly benchmark network adapter performance, we need to:
- Use a simple LAN configuration
- Eliminate bottlenecks, especially link rate bottlenecks
Websites like speedtest.net, fast.com, and other performance tools in your web browser are going to use your WAN connection, and are not appropriate for determining if a network adapter is working well.
Transferring files from one computer to another on your LAN is typically not the best way to benchmark a network adapter. File transfers are bottlenecked by a number of things, including performance limitations of the disk the data is on, and often times a lack of establishing parallel network connections to perform the task.
One of the most accurate ways to benchmark network performance on a LAN is by using iPerf . To more effectively benchmark network adapter performance, it is best to establish a point-to-point connection between two PCs, rather than connecting through a router or switch.
Configuring iPerf
To test a connection using iPerf, you'll need at least two network interfaces, and preferably two computers. You'll also need to know the IP (Internet Protocol) address assigned to each network interface . One network interface will function as an iPerf server, and the other network interface will function as an iPerf client. Lastly, you'll need to download the version of iPerf 3.x that's appropriate for your computer's operating system and extract/install it .
Windows
- Make sure the drivers for both network interfaces involved in the test are using up-to-date drivers. Drivers for Plugable products can be found here.
- Download and extract iPerf for Windows
- Open Command Prompt
- Press Windows Key + R or + R, then enter
cmdin the window that appears - Search the Start Menu for
Command Prompt, and open it
- Press Windows Key + R or + R, then enter
- Navigate Command Prompt to the directory the directory where iPerf is located
- The
cdcommand is for 'change directory'- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
cd %USERPROFILE%\Desktop\iperf
- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
- The
- Run iperf in server mode via Command Prompt
iperf3.exe -s
macOS
- Usually it is best to install iperf on macOS using brew in Terminal
- Make sure the drivers for both network interfaces involved in the test are using up-to-date drivers
- Open Terminal
- Run iPerf in server mode
iperf3 -s
Linux
- Usually it is best to install iperf using the package manager in your Linux distro. For example, in Ubuntu, use
apt: sudo apt install iperf3
- Make sure the drivers for both network interfaces involved in the test are using up-to-date Drivers
- Open Terminal
- Run iPerf in server mode
iperf3 -s
Next, you'll need to run iPerf in client mode, targeting the IP address of the server/interface where iPerf is running in server mode. Additionally, we'll run the test for 30 seconds using -t 30 and with four parallel connections using -P 4. Running 4 parallel connections is optimal for saturating a network link.
Windows
- Open Command Prompt
- Press Windows Key + R or + R, then enter
cmdin the window that appears - Search the Start Menu for
Command Prompt, and open it
- Press Windows Key + R or + R, then enter
- Navigate Command Prompt to the directory the directory where iPerf is located
- The
cdcommand is for 'change directory'- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
cd %USERPROFILE%\Desktop\iperf
- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
- The
- Run iperf in client mode via Command Prompt (replace 192.168.0.200 with the IP address of the server/interface where iPerf is running in server mode)
iperf3.exe -c 192.168.0.200 -t 30 -P 4
macOS / Linux
- Open Terminal
- Run iPerf in client mode (replace 192.168.0.200 with the IP address of the server/interface where iPerf is running in server mode)
iperf3 -c 192.168.0.200 -t 30 -P 4
iPerf should start performing a network performance test. If the test fails to start, make sure that iPerf is not being blocked by your PC's/Mac's firewall.
Why iPerf is Ideal for Benchmarking
Unlike a file transfer, iPerf runs in memory on the PC and generates data to send using the CPU directly. This alleviates potential bottlenecks generated by storage devices, and allows you to explicitly control how many parallel connections are being used to transfer data rather than being unsure if parallel network connections are being used by other means.
Conclusion
There's a lot more to networking that isn't covered in this article, but we hope this helps explain enough to get an accurate measure of your network performance.
If you need assistance with your Plugable product that features network connectivity, please contact us for further assistance.
No Sound? How to Change Your Default Audio Device to Your Plugable Product
Whether you're on Windows, macOS, or Linux, it's common to add new audio devices to your computer.
Some examples of additional audio devices you may want to switch to include:
- Bluetooth headsets, headphones, and speakers
- Speakers built into a display, such as a TV or monitor
- A USB sound card, digital audio converter (DAC), or analog to digital converter (ADC)
- USB microphones
- Audio jacks on a docking station
These steps don't apply to the Plugable Performance NIX HDMI Capture Card (USBC-CAP60).
Here are the steps that you need to set a new default audio recording or output device on different operating systems.
Set Audio Output Device
Set Audio Recording Device
Set Default Playback Device in Windows
- Check that your device is properly connected, and that any necessary drivers are installed
- It is also a good idea to make sure that your sound device is turned on, and that the device's volume control is not at the absolute minimum setting
- Right-click on the speaker symbol in the Windows taskbar/system tray
-
Windows 7/8.x—Select Playback Devices. The Sound window will open with the Playback tab highlighted
-
Windows 10/11—Select Open Sound Settings then click the link under 'Related Settings' for Sound Control Panel, then click the Playback tab
- Alternatively, after selecting Open Sound Settings, use the dropdowns under the Output header
-
Windows 7/8.x—Select Playback Devices. The Sound window will open with the Playback tab highlighted
- Find your device in the window
- A Plugable USB 3.0 docking station or sound-enabled display adapter will appear as Plugable Audio
- A Plugable USB 3.0 Silicon Motion docking station or sound-enabled display adapter will appear as SMI USB Audio
- A Plugable USB 2.0 docking station will appear as USB Multimedia Audio Device
- A Plugable USB Audio adapter will appear as USB Audio Device
- Right-click on the device you found in step 3 and select Set as Default Device. A check mark should appear next to your device, and sound should now play through it
- Click OK to exit the window
Additional Configuration for Bluetooth
Please see our pairing and configuration guide for Bluetooth devices.
Set Default Playback Device in macOS
- Open System Preferences
- Click Sound
- Select Output
- Select the most appropriate device
- A Plugable USB Audio adapter will appear as USB Audio Device
Set Default Playback Device in Linux
- Ensure that you audio device is connected to the PC
- If the audio device is self-powered, it is a good idea to make sure that it is powered on, and that the device's volume control is not at the absolute minimum setting
- Launch the 'Settings' application in your distro
- Go to the 'Sound' option
- Find the dropdown for your 'Output Device', and change it to your preferred output device
- For additional sound device controls, you may want to consider using Pulseaudio Volume Controls (package name pavucontrol)
Set Default Recording Device in Windows
- Check that your device is properly connected, and that any necessary drivers are installed
- It is also a good idea to make sure that your sound device is turned on, and that the device's volume control is not at the absolute minimum setting
- Right-click on the speaker symbol in the Windows taskbar/system tray
-
Windows 7/8.x—Select Recording Devices. The Sound window will open with the Recording tab highlighted
-
Windows 10/11—Select Open Sound Settings then click the link under 'Related Settings' for Sound Control Panel, then click the Recording tab
- Alternatively, after selecting Open Sound Settings, use the dropdowns under the Input header
-
Windows 7/8.x—Select Recording Devices. The Sound window will open with the Recording tab highlighted
- Find your device in the window
- A Plugable USB 3.0 DisplayLink docking station or sound-enabled display adapter will appear as Plugable Audio
- A Plugable USB 2.0 docking station will appear as USB Multimedia Audio Device
- A Plugable USB Audio adapter will appear as USB Audio Device
- Right-click on the device you found in step 3 and select Set as Default Device. A check mark should appear next to your device, and sound should now play through it
- Click OK to exit the window
Additional Configuration for Bluetooth
Please see our pairing and configuration guide for Bluetooth devices.
Set Default Recording Device in macOS
- Open System Preferences
- Click Sound
- Select Input
- Select the most appropriate device
- A Plugable USB Audio adapter will appear as USB Audio Device
Set Default Recording Device in Linux
- Ensure that you audio device is connected to the PC
- If the audio device is self-powered, it is a good idea to make sure that it is powered on, and that the device's volume control is not at the absolute minimum setting
- Launch the 'Settings' application in your distro
- Go to the 'Sound' option
- Find the dropdown for your 'Input Device', and change it to your preferred input device
- For additional sound device controls, you may want to consider using Pulseaudio Volume Controls (package name pavucontrol)
My Docking Station/Adapter Works Well With My Windows Laptop, but When I Close the Lid the Displays and Laptop Turn Off or Sleep. How Do I Fix This?
Most Windows notebook computers power management settings will default to putting the computer to sleep with the lid closed, regardless of any external displays, keyboard, or mouse connected to the computer. If this is happening but you would prefer the system to remain active with the lid closed utilizing the external display or displays, these settings can be changed by performing the following:
For Windows 10:
- Start by right-clicking on the Start button and select Power Options from the menu.
- From the right side of the Power Options settings page, select the blue link for Additional power settings
- From the choices present on the left-hand side of the Power Options window, please click on Choose what closing the lid does
- Make sure the setting for When I close the lid under the Plugged In column is set to Do Nothing
- Click the Save Changes button and restart the system (making sure that the laptop’s power adapter is also connected) and test the behavior again.
For Windows 11:
- Start by right-clicking on the Start button and select Power Options from the menu.
- In the upper left corner of the settings window, in the search box, type "lid" then select Change what closing the lid does from the search results
- Make sure the setting for When I close the lid under the Plugged In column is set to Do Nothing
- Click the Save Changes button to apply the new settings.
Closing the lid should no longer put the computer into sleep mode when an external display and power source is connected, instead one of the external displays should now become the Primary display with the desktop icons instead of the laptop's built-in display.
The lid may still need to be opened to perform the following tasks:
- To power on the computer from a fully powered off state
- To log into the computer if logged out or if the computer is restarted with the lid closed
- To wake the computer from a deep sleep state ( hibernation, or Windows hybrid sleep states )
Does the TBT3-UDZ front USB-C port support video?
No, the front USB-C port on the TBT3-UDZ is for data only and does not support USB-C VESA DisplayPort Alternate Mode video output. Displays attached through this dock must be connected to the rear HDMI or DisplayPorts.
Does the TBT3-UDZ front USB-C port support charging?
No, the front USB-C port on the TBT3-UDZ supports standard USB 3.x 900mA (4.5W) power output. The only USB port on this dock capable of charging a device like a phone or tablet is the front USB-A port which can offer 1.5A (7.5W) via the BC 1.2 CDP charging standard.
Can I connect four monitors to the TBT3-UDZ?
No, the TBT3-UDZ supports a maximum of two monitors via "Display 1" and "Display 2" video output "banks" in the following configurations:
- DisplayPort + DisplayPort
- HDMI + HDMI
- DisplayPort + HDMI (cannot be both connected to the same "bank")
For additional details about supported displays, see here: https://kb.plugable.com/en_US/docking-stations-and-video/what-are-the-display-output-capabilities-for-the-tbt3-udz
Only one monitor is working, what can I do to fix this?
This article applies to Plugable Thunderbolt 3 docking stations such as these:
- TBT3-UDZ Thunderbolt™ 3 and USB-C Dual Display Dock with 96W Host Charging
- TBT3-UDC1 Thunderbolt™ 3 and USB-C Dual Display Docking Station with 60W Host Charging
- TBT3-UDC3 Thunderbolt™ 3 and USB-C Dual Display Dock with 96W Host Charging
For Thunderbolt 3 systems:
Some systems with Thunderbolt 3 support may only have the ability to connect a single display through the Thunderbolt 3 port. This is due to how the system manufacturer has configured the internal circuitry of the computer between the system graphics card and the system Thunderbolt 3 controller. To be specific, they have only routed one DisplayPort video line/stream from the graphics card to the TBT3 controller.
As an example of this, many Intel NUC systems only support a single display, see here for reference: https://www.intel.com/content/www/us/en/support/articles/000021752/intel-nuc.html
We also see this configuration on many high end gaming laptops or desktop replacement workstation laptops that have one or more dedicated onboard video outputs. Unfortunately, this is often undocumented and you may need to contact your system manufacture to verify if they expect dual monitors will be supported over Thunderbolt 3.
Apple M1 and M2-based Macs (MacBook Air, Mac Mini, and MacBook Pro) only support a single display through Thunderbolt 3 or USB-C. (This limitation is a limitation of the M1 and M2 graphics card design.)
Please note that MacBook Air and MacBook Pro M3(base) can support up to two displays with the lid closed(clamshell) over Thunderbolt.
- macOS Sonoma 14.3 or later for MacBook Air M3 is required
- macOS Sonoma 14.6 or later for MacBook Pro M3 is required
For USB-C systems:
Apple USB-C only systems (without Thunderbolt 3 support) like the 2015 MacBook Retina 12" can only support a single display or will show two screens with mirrored images. This is because Apple does not support DisplayPort MST (multi-stream) which our dock uses to take a single USB-C DisplayPort Alternate Mode video line and connect two displays through it.
Windows USB-C systems should support MST in most cases, if you're only able to connect a single display, please contact us via support@plugable.com for further assistance!
I updated to macOS Big Sur 11.1 and now cannot connect dual displays or my displays are operating incorrectly.
Based on customer reports and information online found after this update, it appears that there is a regression in macOS Big Sur 11.1 that is causing video output issues through Thunderbolt 3 devices like our dock such as only a single display works versus two working prior with macOS Big Sur 11.0.1, or video resolutions and/or refresh rates are incorrect (example: only 4K @ 30Hz possible vs expected 4K @ 60Hz).
We encourage you to report these issue to Apple using their feedback form located here: https://www.apple.com/feedback/macos.html
Unfortunately, to resolve this issue you'll need to restore to a previous backup of your system if available for macOS Big Sur 11.0.1 or wait until the next update from Apple.
When I put my Mac to sleep it causes my entire network to stop functioning.
There is a known issue with the Apple provided built in macOS Ethernet drivers for the Realtek RTL8153 USB 3.0 Ethernet chipset used in our dock (and many other docks and USB Ethernet adapters on the market). When put to sleep, the problematic driver creates an Ethernet broadcast storm which can overwhelm some Ethernet routers.
For macOS Catalina 10.15.x users, please contact us via support@plugable.com and we can provide you with an updated driver and installation instructions.
For macOS Big Sur 11.x users, this behavior can be rectified by updating the host system to macOS Big Sur version 11.3 (released by Apple on 4/26/2021).
If you are unable to install third party drivers for macOS 10.15.x or are unable to upgrade from macOS Big Sur 11.x to 11.3, we recommend to disable your Mac from sleeping to prevent this issue, or use WiFi instead of Ethernet until you are able to install the driver at a later date or upgrade to the new macOS version.
If you need further assistance feel free to contact us via support@plugable.com and we'll be happy to help!
Can I use a longer Thunderbolt 3 or USB-C cable to connect the dock to my system?
For Thunderbolt 3 systems a longer cable can be used, but there are some important factors to consider. The longest passive Thunderbolt 3 cable rated for 40Gbps (required for dual displays via TBT3) at this time is already included and is 0.8m in length. Longer cables will need to be active cables. We don't sell any active cables but they are available at up to two meters.
For users with USB-C only systems a Thunderbolt 3 cable is not required. Instead, a longer USB 3.1 Gen 2 cable rated for 10Gbps can be used. We recommend no longer than 2m in length. However, due to the varying quality of USB-C cables on the market, a better alternative would be a 2m 20Gbps passive Thunderbolt 3 cable like our TBT3-20G2M: http://plugable.com/products/tbt3-20g2m
Please note: For docks with 60W (watts) Power Delivery charging capabilities a cable that supports 3A (amps) minimum is required. For docks that support greater than 60W (65W, 85W, 96W, 100W) charging, a 5A cable is required.
Kernel Panic When Connecting the Dock to My MacBook Pro 16″ (Intel)
Update 11/1/2021: We're happy to report this issue can now be resolved by updating from macOS Big Sur 11.x to macOS Monterey 12.0.1.
Plugable has been able to reproduce this problem internally and it has been raised to Apple for closer investigation. This issue appears to be from a regression introduced with the macOS Big Sur 11.4 update and is still present through 11.6.
This problem can occur when displays are connected to the docking station while the dock is reconnected to a Thunderbolt 3 port on a MacBook Pro 16" using the host Thunderbolt 3 cable (hot-plugged).
This kernel panic issue currently affects any docking station (Plugable-branded or otherwise) that uses what is known as DisplayPort Multi-Stream Transport (MST) to power one or more of the video outputs on a docking station. It is also specific to the MacBook Pro 16" system—other Mac systems do not exhibit the same problem.
To workaround this issue, we recommend disconnecting any HDMI displays from the dock before plugging the Thunderbolt 3 cable into the computer. Then, once connected, you may reconnect the HDMI display(s) to the dock.
My Windows Laptop Will Not Boot Properly When My Docking Station Is Connected
If your Windows laptop will not boot properly when a docking station is connected to the laptop, most often the cause is an external device connected to the docking station (for example an external USB storage drive) as opposed to the dock itself.
If you are affected by this condition, please follow these steps in order to isolate the behavior further:
- Disconnect all USB devices from the docking station and put them aside for the moment.
- Disconnect any displays connected to the dock's video outputs.
- Disconnect any audio devices connected to the dock's audio ports (if present).
- Disconnect the Ethernet network cable from the dock's Ethernet port (if present).
- The only remaining connections should be the dock's power adapter cable and the USB cable used to connect it to the laptop. No other external devices should be connected to the dock.
- While in this state, reboot the laptop to test the behavior.
- Assuming the laptop boots as expected, please reconnect each device back to the dock one at a time and reboot after each one to test the behavior again. Please reconnect the displays first, then the audio devices, then the Ethernet cable. Please reconnect any USB devices to the dock last, again rebooting after each one is added to test the behavior.
In our experience helping others, the most common cause of this behavior is an external USB storage drive connected to one of the dock's USB ports. In some cases, a laptop may try to boot from an external storage drive by mistake as opposed to the laptop's built-in storage drive. Since most external USB storage drives are not 'bootable', this can interrupt the boot process.
If this behavior occurs, the most common way to mitigate the behavior is to access the laptop's System BIOS (also known as UEFI firmware) to change the 'boot order' settings to ensure that the laptop's internal storage drive is the first boot option. Doing so helps ensure that the laptop will not try to boot from an external USB storage device.
Every laptop system is different, so the best resource for accessing the System BIOS and changing the settings is the manual for the laptop provided by the laptop manufacturer.
USB devices and/or displays are not detected after waking from sleep or after rebooting on macOS.
We have been tracking reported issues where externally connected USB devices and/or internal USB devices within the TBT3-UDZ docking station (Ethernet, audio, and card reader) may not be detected after waking the system from sleep or after rebooting on some macOS systems (typically only with M1 based Macs).
Some users may also experience one or both displays attached to the dock not waking from a low power sleep state as well (can affect both M1 and Intel based Macs).
If running macOS Catalina 10.15.x or macOS Big Sur (prior to 11.3) and are experiencing issues with the Ethernet only, please see: https://kb.plugable.com/776031
To begin troubleshooting USB device and/or display issues:
If using an Intel based Mac we recommend the following steps:
- Unplug the dock from the Mac and unplug power from the dock. Please leave the dock disconnected until the final step.
- Perform an SMC reset: https://support.apple.com/en-us/HT201295
- Perform an NVRAM/PRAM reset: https://support.apple.com/en-us/HT204063
- After logging back in, wait about 30-60 seconds, then plug power into the dock first and plug the dock into the Mac next (using the provided Thunderbolt 3 cable the dock shipped with) and see if the behavior has improved.
If using an M1 based Mac we recommend the following steps:
- Unplug the dock from the Mac and unplug power from the dock. Please leave the dock disconnected until the final step.
- Fully shutdown the Mac. (On your Mac, click the "Apple" menu and select "Shut Down")
- After the Mac has shutdown, wait for 60-90 seconds, then turn the Mac back on.
- After logging back in, wait about 30-60 seconds, then plug power into the dock first and plug the dock into the Mac next (using the provided Thunderbolt 3 cable the dock shipped with) and see if the behavior has improved.
If these initial troubleshooting steps do not help, please contact us at support@plugable.com and we'll be happy to assist you.
What side of my MacBook should I connect my dock to? Does this affect the dock performance or technical abilities?
For Intel based MacBook Pro models with four Thunderbolt 3 ports, some users have found connecting the dock to the left or right side to be more stable than the other. Due to some variance in MacBook designs, we've found it is best to experiment with your particular setup to find what works well for you. With that said, there are some specific situations where a particular side may be inherently better:
1) Older MacBook Pro models have had varying capabilities depending on the side used:
- MacBook Pro (15-inch, 2016) delivers full Thunderbolt 3 performance on all four ports.
- MacBook Pro (13-inch,2016, Four Thunderbolt 3 Ports) supports Thunderbolt 3 at full performance using the two left-hand ports. The two right-hand ports deliver Thunderbolt 3 functionality, but have reduced PCI Express bandwidth. Always plug higher-performance devices into the left-hand ports on MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) for maximum data throughput.
- MacBook Pro (13-inch, 2016, Two Thunderbolt 3 Ports) delivers full Thunderbolt 3 performance on both ports.
2) It has been suggested for 16" MacBook Pro owners to connect to the right side for the best performance. ExtremeTech has a great article about why this is here: http://extremetech.com/computing/309802-charging-a-macbook-on-the-wrong-side-can-significantly-lower-its-performance
3) It is also worth mentioning that per side of Thunderbolt 3 Intel based MacBooks, a maximum of two displays are supported. If using the dock on one side of the system for two displays, another display cannot be connected to the second Thunderbolt 3 port on that same side (this means Intel based MacBook Pros with only two ports will support only two displays).
Thunderbolt 3 MacBook Pros with four ports (two on each side) can support either two or four displays maximum depending on the system configuration. Intel graphics based four port models are limited to two displays only whereas AMD based graphics four port models can support four displays.
Example: You want to connect three or four displays to your four port AMD graphics based MacBook Pro, you will need to connect the dock to one side for two displays and the third or fourth displays must be connected to the opposite side of the system.
Note: Currently, M1 based Macs (MacBook Air, Mac Mini, and MacBook Pro) only support a single display through Thunderbolt 3 or USB-C. This is a limitation of the M1 graphics card design.
Please feel free to contact us at support@plugable.com if you have any questions!
What are the display output capabilities for the TBT3-UDZ?
The TBT3-UDZ docking station offers two primary modes to output video to attached displays via the dual HDMI 2.0 and dual DisplayPort 1.2 outputs: Thunderbolt 3 mode and USB-C DisplayPort Alternate mode.
Systems with Thunderbolt 3 (or 4) support and USB-C only systems without Thunderbolt support will have differing capabilities. In addition, some Thunderbolt 3 systems may only support a single display and some USB-C only systems may lack USB-C DisplayPort Alternate Mode video output entirely (no displays will work).
In either TBT3 or USB-C DP Alt modes, a maximum of two displays are supported and can be connected in any combination of HDMI + HDMI, DP + DP, or a mix of HDMI + DP to the "Display 1" and "Display 2" output groups. See below for more details:
Multiple display capabilities for Thunderbolt 3:
- Systems that support two DisplayPort streams over Thunderbolt 3 can offer up to two displays at 4K (3840x2160) at 60Hz via HDMI 2.0 or DisplayPort 1.2.
- Systems that support one DisplayPort stream over Thunderbolt 3 can offer up to one display at 4K (3840x2160) at 60Hz via HDMI 2.0 or DisplayPort 1.2.
Multiple display capabilities for USB-C only systems (no Thunderbolt 3 support, operating in USB-C MFDP (Multifunction DisplayPort) mode):
- Systems that support DisplayPort 1.2 HBR2 (High Bit Rate 2) can offer one display up to 4K (3840x2160) at 30Hz or two displays 1080p (1920x1080) at 60Hz via HDMI 2.0 or DisplayPort 1.2.
- Systems that support DisplayPort 1.4 HBR3 (High Bit Rate 3) can offer one display up to 4K (3840x2160) at 60Hz or two displays 1440p (2560x1440) at 60Hz via HDMI 2.0 or DisplayPort 1.2.
- Systems that support DisplayPort 1.4 HBR3 with DSC (High Bit Rate 3 with Display Stream Compression) can offer up to two displays at 4K (3840x2160) at 60Hz via HDMI 2.0 or DisplayPort 1.2.
Important Notes:
- Apple M1 and M2-based Macs (non-Intel processor MacBook Air, MacBook Pro, Mac Mini, and iMac) only support a single display through Thunderbolt 3 or USB-C. This is a limitation of the M1 and M2 graphics card design. (M1/M2/M3 Pro and M1/M2/M3 Max based Macs do not have this limitation.)
- MacBook Air and MacBook Pro M3(base) can support up to two displays with the lid closed(clamshell) over Thunderbolt.
- macOS Sonoma 14.3 or later for MacBook Air M3 is required
- macOS Sonoma 14.6 or later for MacBook Pro M3 is required
- We do not support HDR (High Dynamic Range) or adaptive sync (AMD FreeSync or Nvidia G-Sync).
- We do not officially support high refresh rate displays above 60Hz. (Higher refresh rates may be selected but performance and stability above 60Hz is not guaranteed.)
- If converting the DisplayPort outputs to a different connector type, an active DisplayPort adapter is required. Passive DisplayPort adapters are not supported. (Dock DisplayPorts do not offer DP++ capabilities required for passive adapters.)
- Users with legacy DVI displays should use passive HDMI to DVI adapters.
- Users with legacy VGA displays should use active DisplayPort to VGA adapters or active HDMI to VGA adapters.
- Thunderbolt and USB-C DisplayPort Alternate Mode displays are not supported.
- Legacy Apple ADC displays are not supported.
- 5K or 6K displays are not supported as they require a higher resolution output than what this dock can offer.
- The use of multiple DisplayPort displays daisy-chained via MST (Multi-Stream) is not supported.
- Older 4K displays that require MST to operate at 4K 60Hz are not supported. (These displays use two 1920x2160 vertical panels in the display via MST to achieve 3840x2160.)
- Apple 12” MacBook Retina USB-C models without Thunderbolt 3 are limited to a single extended display or dual mirrored displays up to 4096x2160 @ 30Hz.
- Legacy Apple Thunderbolt (1 or 2) systems being converted to Thunderbolt 3 using Apple's bi-directional Thunderbolt adapter are not officially supported. (Some users have reported success, however, the dock is limited to a single display in this configuration and we cannot guarantee performance or stability.)
If you have any questions please feel free to contact us at support@plugable.com and we'll be happy to assist!
Is the TBT3-UDZ Supported Within Operating Systems Running in a Boot Camp Environment on a Mac?
The TBT3-UDZ is not officially supported within the Apple Boot Camp environment and may not perform as expected. We do not recommend the purchase of this docking station for Boot Camp users.
Are the Thunderbolt 3 Docks Compatible With Thunderbolt Add-In Cards (AIC's)?
From our testing as well as customers' experiences, our Thunderbolt 3 docks are not compatible with Thunderbolt add-in cards and often result in USB devices being not detected when connected to a Thunderbolt add-in card on a desktop PC.
Docking Station Power Adapters
Below is a list of power adapter models used by Plugable docking stations. We offer refurbished replacement power adapters on eBay as they are available for purchase, however, we may not have replacement power adapters available for all of our docking stations.
If the power adapter for your docking station or region is not listed, out of stock on eBay or if you have any other questions regarding replacement power adapters for our docks please contact us at support@plugable.com and we will be happy to assist further.
We offer a 30-day return period for our replacement power adapters listed on eBay.
| Dock Models | Power Supply Model Number | Replacement Power Supply (if available) |
|---|---|---|
| USB 3.0 / USB-C Docking Stations | ||
| UD-3900 UD-3000 UD-5900 UD-PRO8 UD-3900C |
DSA-24PFS-05 |
|
| UD-3900H | P120W2000U |
|
| UD-3900PDZ | ADS-110CL-19-3 2000090E |
|
| UD-3900Z | ADS-26SGP-12 12024E |
|
| UD-6950 | A16-045N3A |
|
| UD-6950H | P200W2000UG |
|
| UD-6950Z | ADS-40SGP-19 20040G |
|
| UD-CA1 UD-CA1A |
EA10953D-200 |
|
| UD-ULTCDL (MK1 original and MK2 updated version) Note: Check here to determine what version of dock you have |
A16-065N2A (MK1 model) A18-135P1B-Rev3 (MK2 model) Note: MK2 model adapters will work with MK1 docks |
|
| UD-ULTC4K (MK1 original and MK2 updated version) Note: Check here to determine what version of dock you have |
A16-100P1A (MK1 model) A18-135P1B-Rev3 (MK2 model) Note: MK2 model adapters will work with MK1 docks |
|
| UD-3900C4 |
A18-135P1B-Rev3 |
North America plug |
| UD-3900PDH |
PS200D06500G1 |
North America plug |
| UD-768PDZ |
PA-1131-72 v2 |
North America plug |
| UD-6950PDZ |
A16-100P1A rev 3 |
North America plug |
| UD-MSTH2 |
ADS-110DL-19-1 200110E |
North America plug |
| UD-MSTHDC |
ADS-110DL-19-1 200110E |
North America plug |
| UD-CAM |
A16-100P1A |
|
| UD-CUBE |
EA1024CR-050 |
|
| UD-6950PDH |
PS200D06500G1 (v1 of dock*) F-J-SW202720006700 (v2 of dock with serial numbers 4157 or newer*) *For more details about v1 and v2 UD-6950PDH docks visit our Knowledge Base article |
North America plug (v1) North America plug (v2) |
| Thunderbolt / USB4 Docking Stations | ||
| TBT4-UDZ |
PA-1131-72 v2 |
North America plug |
| TBT3-UDC1 | PA-1131-72 v1 |
|
| TBT3-UDV | A18-135P1B-Rev1 |
|
| TBT3-UDZ | PA-1171-72 |
|
| TBT3-UDC3 | PA-1171-72 |
|
| TBT4-HUB3C | ADS-110DL-19-1 200110E |
|
| USB4-HUB3A |
ADS-110DL-19-1-200100E |
North America plug |
| TBT4-UD5 | FJ-SW202720006400 |
North America plug |
| TBT4-UDX1 | A18-135P1B-Rev4 A18-135P1B-Rev3 (Large Barrel) |
|
| TBT-6950PD | YW180A2-2100858 |
|
| UD-4VPD |
PA-1171-72 |
North America plug |
Why do I not see any video when using a USB-C to DisplayPort cable?
When connecting to a monitor that accepts a USB-C input, from a docking station that outputs DisplayPort (such as the UD-6950, UD-6950Z, UD-6950H, TBT3-UDZ, TBT3-UDC3), you will need to use a DisplayPort to USB-C "Bi-Directional" cable. This is because many USB-C to DisplayPort cables are unidirectional and only send data in one direction, from USB-C source device to a DisplayPort input port on a monitor.
Additional information:
- Be sure to use a DisplayPort to USB-C cable that supports the 1.2 DisplayPort standard (or higher).
- To ensure optimal performance the maximum recommended cable length should be no longer than 1.8 meters (6 feet).
An example of a DisplayPort to USB-C "Bi-Directional" cable can be seen here: https://www.amazon.com/dp/B081VK1KHV
Can I Connect a USB-C Monitor or USB-C Video Adapter to My Thunderbolt 3 Dock?
The USB-C ports (excluding the host connection) on our TBT3-UDZ, TBT3-UDC3, and TBT3-UDC1 do not support video output. This means that USB-C/Thunderbolt monitors as well as USB-C video adapters will not output a display when connected to these ports.
Our TBT3-UD1-85W and TBT3-UD1-83 docks have a downstream Thunderbolt 3 port that can support video output up to 4K resolution @ 60Hz, so USB-C/Thunderbolt monitors as well as USB-C video adapters should output a display when connected to these ports.
My Plugable Dock Is Missing a Component Such As the Power Supply, USB Cable, or Other Adapter.
If your package is missing one or more of the items that should be included with your Plugable dock (included items are listed on a chart on the side of the box), start by double checking if the part is still in the packaging. Pieces can occasionally get stuck in the corners under the main insert in the box.
If you are still unable to locate the piece, please contact support@plugable.com with the following information:
1. Amazon Order ID (or other proof of purchase) associated with your Plugable device.
2. A description of the parts that are missing from your order.
3. Your preferred shipping address (and a phone number associated with that address).
4. The serial number of your Plugable Dock.
Can I Connect My High Refresh Rate Monitor (e.g. 120Hz, 144Hz) to a Plugable Dock?
Most Plugable docks do not officially support monitors over 60Hz including 120Hz or 144Hz refresh rate unless otherwise specified on the Plugable product page or listing.
DisplayLink USB Graphics technology and Silicon Motion based docking stations and graphics adapters, like our USB 3.0 dual display and USB Type-C triple display docking stations, are limited to 60Hz fresh rate by the USB graphics controller hardware.
USB Type-C DisplayPort Alternate Mode docking station and ports on our USB Type-C Triple Display Docking Stations can support higher refresh rates, but may be limited by the computer's capability and available bandwidth to the docking station. Additionally, when paired with DisplayLink or Silicon Motion USB graphics, having displays at different refresh rates may reduce overall system performance. Due to this we normally recommend limiting all connected displays to 60Hz refresh rate when using DisplayLink and Silicon Motion graphics technology with directly connected, or USB Type-C DisplayPort Alternate Mode controlled displays.
Monitors with refresh rates higher then 60Hz may be connected to a docking station operating at up to 60Hz, or connected directly on the computer's HDMI or DisplayPort to ensure the display is powered by the system's native GPU.
Does My TBT3-UDZ Need Updated Firmware?
The TBT3-UDZ docking station may need updated firmware if you are experiencing any of the following issues, and after standard troubleshooting (such as driver updates and firmware updates to the host system) has not helped:
- One or both monitors flicker or black out intermittently.
- One or both monitors do not wake from sleep, after a reboot, or cold boot.
- A second monitor is detected but displaying no image on screen. (can be connected via either "Display 1" or "Display 2" DP or HDMI output groups)
- Some displays that have built-in audio capabilities may not work as expected. (no audio, or inconsistent audio performance)
Note: Updating the dock firmware will not help with other non-video related issues, if experiencing other issues please contact us at support@plugable.com and we'll be happy to assist.
If you are experiencing any of the above issues, to update the firmware you will need access to a Windows 10 or Windows 11 system with Thunderbolt 3, Thunderbolt 4, or USB4. (Standard USB-C systems may also support the update process if they support USB-C DisplayPort Alternate Mode.)
The firmware update cannot be performed on a Mac system, or systems running Linux. If you do not have access to a compatible Windows system to perform the firmware update please contact us for assistance.
To update the TBT3-UDZ dock firmware you must first identify which hardware revision of the dock you have (there are two currently). To determine what version you have and then update the firmware you can follow the below steps:
- Please connect the TBT3-UDZ dock that is to be updated to a Windows 10 or 11 system with Thunderbolt 3, 4, or USB4.
- Once confirmed that the dock is recognized by the system please navigate to the Device Manager.
- Once Device Manager is open scroll down to "Universal Serial Bus controllers" and expand the list:
- The TBT3-UDZ dock has three "Generic SuperSpeed USB Hub" entries that should show up. (If you do not see any entries at all then the dock is not being detected properly. Please feel free to contact us for assistance if this occurs.)
Note: If you see more than three entries then the system may have another USB hub, etc attached. If so, you may wish to disconnect the additional device(s) as it will make this process easier to identify the dock.
- Right click on the first entry and choose "Properties":
- Now navigate to the "Details" tab, and below where it says "Property" click the drop down menu and choose "Hardware Ids":
- Make note of the "USB\VID_xxxx" value. Then check the additional two Generic SuperSpeed USB Hub entries, also noting their USB\VID_xxxx values.
- If all three start with USB\VID_2109... please follow these PDF instructions to download and perform the firmware update:
TBT3-UDZ firmware update procedure (VIA USB hub models).pdf
- If all three start with USB\VID_05e3... please follow these PDF instructions to download and perform the firmware update:
TBT3-UDZ firmware update procedure (Genesys Logic USB hub models).pdf
If you encounter any issues during the firmware update process, or have any additional questions please contact us at support@plugable.com and we'll be happy to assist.
Do Plugable products support the Apple SuperDrive?
Unfortunately Plugable products do not support the Apple SuperDrive.
The Apple SuperDrive has stringent power requirements that can only be met by directly connecting the SuperDrive to your host laptop. As a result at this time Apple recommends only using their USB-C adapter cables. You can find more information on that here → How to connect the Apple USB SuperDrive
If you have purchased a Plugable product to use with your Apple SuperDrive, and would like some additional assistance please do not hesitate to reach out. You can do so by emailing support@plugable.com, or going to Plugable.com/Support.
My Plugable product with wired Ethernet is no longer working on macOS. What can I do?
Please Note
The below guide is an advanced troubleshooting step, and we do not recommend doing so unless you are comfortable manually altering files on your Apple product running macOS. You may not be able to perform the below troubleshooting step if you are unable to execute administrative credentials on your laptop. Please reach out to our support first if you do not wish to attempt the below instructions. You can do so at Plugable.com/Support
How to delete a specific Ethernet adapter from your Network devices on macOS
- Click on the Apple logo in the top left corner of your primary monitor, and select ‘System Preferences’
- Next select ‘Network’ in the ‘System Preferences' window.
- In the now visible list, please select the Plugable Ethernet, or Thunderbolt Ethernet device that may not be working as expected.
- Once selected click on the minus button in the bottom left of the network window.
- Click on Apply in the bottom right.
- Next click on the plus button in the bottom left of the network window, and add the previously removed device.
- Click on Apply in the bottom right.
- Test to see if this has resolved the unexpected behavior, and assure that your Ethernet is now working.
- If this does not resolve the problem, please proceed to the next section (As noted previously the next section is for advanced users only!)
Manually erase your macOS Network Settings to fully reset the Network configuration
(Advanced! Click to reveal)
- Open the ‘Finder’ app, then in the ‘Go’ menu at the top of your screen select ‘Computer’
- Click on ‘Macintosh HD’ then Library, Preferences, SystemConfiguration
- Copy the file named ‘NetworkInterfaces.plist’ to your desktop as a backup of your current configuration.
- Delete the original version of the ‘NetworkInterfaces.plist’ located in the SystemConfiguration directory.
- Restart your Mac
- Login to your Mac, and return to System Preferences → Network
- If the list is now empty, please re-add the Plugable or Thunderbolt network adapter by clicking on the plus button in the bottom left of the Network window. Once done click on 'Apply'.
- Test to see if this has resolved the unexpected network behavior
I am still unable to get my Ethernet connection working on my Mac
If this is the case please reach out to our support team. When you do please include a diagnostic log gathered using our PlugDebug tool (instructions are provided on the PlugDebug page). If you are not able to gather the PlugDebug diagnostics do not worry we are still here to help! Please reach out to our support team at support@plugable.com or Plugable.com/Support with a detailed description of your problem, and the model of Plugable product you are using.
The monitor I am connecting to the TBT3-UDZ has an HDMI 2.1 video input port, and the monitor is not working or not working at its maximum resolution. How do I fix this?
The HDMI video output ports of the TBT3-UDZ dock support the HDMI 2.0 standard.
If a monitor supporting HDMI 2.1 is not working or not working at the maximum resolution when connected to the TBT3-UDZ via a HDMI video cable, please consult your monitor's user manual in order to see if the HDMI version setting can be changed to version 2.0 or 1.4.
If the HDMI version can be changed, please change the HDMI version setting to a lower version number and then test the behavior again.
Thunderbolt 3 Authentication
Windows systems need to have newly attached Thunderbolt 3 devices authenticated before they can be used. For most computers this process needs to be performed manually through the Legacy Thunderbolt utility installed on your computer. Newer Windows host systems (around November 2018 and newer) may be using an updated driver model, Declarative C
Below we will cover both methods of authentication as well as how to check NVM on older systems to see if an update is required. These processes may vary depending on how the host system Thunderbolt security level is configured in the UEFI BIOS, however, most systems will be set for user authorization or secure connect.
Thunderbolt 3 DCH and Legacy Driver:
Legacy Thunderbolt 3 Authentication (non DCH Thunderbolt 3 drivers & Thunderbolt Utility):
When first connecting a Thunderbolt 3 device to a Windows system, the device must first be authenticated through Intel’s Thunderbolt 3 software. After connecting a Thunderbolt 3 device the first thing that you should see (assuming that the system NVM, UEFI BIOS, drivers, etc are up to date and compatible) is an automatic notification above the system tray notifying you that a new device has been attached. You will want to click OK:
After clicking OK, you may get a Windows User Account Control (UAC) popup asking if you “want to allow this app to make changes to your PC?”. Click Yes:
After clicking yes you should see an application window appear where you will approve the Thunderbolt 3 device that was just attached:
Click on the drop down menu where it says “Do Not Connect” and select “Always Connect”. Then click OK:
To view and manage the approved devices you can find the program sitting in the system tray. You may need to click the caret (up arrow icon) to show all of the running programs then right click on the Thunderbolt icon it and select Manage Approved Devices:
You may again get a Windows UAC prompt, click yes. After clicking yes the below window will open and you can see any approved devices and remove them if you choose.
Thunderbolt 3 Authentication (DCH Thunderbolt 3 drivers & Windows App Store Thunderbolt Utility):
For systems running the DCH version of the Thunderbolt 3 drivers and the Windows Store Thunderbolt Control Center app, many newer hosts will automatically authenticate the attached device using secure connect. For systems where your attached Thunderbolt 3 device is not authenticated automatically via secure connect you can authenticate the device manually. Start by searching the start menu for Thunderbolt and selecting the Thunderbolt Control Center:
Here you should see your attached device:
To approve the device click on the menu button (three horizontal lines) and then click “Approve devices”:
Next you can select “Always connect” and then press “OK” at the bottom of the application:
Your device should then automatically be approved the next time it is attached.
Checking NVM Version (Legacy)
How do I check which version of Thunderbolt 3 software and NVM firmware I am running in Windows?
To determine what version of NVM firmware your system has, the first step is to ensure you have the latest Thunderbolt software version which varies depending on the system manufacturer. You should be able to download it from your system manufacturer’s website.
Once installed you can open the software by searching the start menu for Thunderbolt:
Once open you can find the program sitting in the system tray. You may need to click the caret (up arrow icon) to show all of the running programs then right click on the Thunderbolt icon and select Settings:
Now you should see the settings window. Click on Details to find out all of the Thunderbolt software and controller information:
If a Thunderbolt 3 device has been connected to the system the Thunderbolt software will show you information about the controller. Below you can see the details from our Dell XPS 13 9350 system:
Unfortunately if a Thunderbolt device has not yet been connected to the system, the information about the NVM firmware may not be available within the utility:
Support
If you have any questions feel free to contact our support team, we’re more than happy to help!
Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.
Can I leave my notebook computer connected to a charging dock overnight, or should I discharge and recharge the notebook battery regularly?
We are often asked if it is okay to leave a notebook computer connected to one of our USB-C docking stations with Power Delivery for extended periods of time. The short answer is yes, it is no different from leaving the laptop connected to the manufacturer's original USB-C power supply for the same time. The long answer is yes for modern laptops, and maybe for older (1990s-early 2000s laptops) and involves going into the different battery technologies used in consumer electronics devices.
Another common question is if it is possible to use the docking station but to disable powering and charging the computer. When a modern notebook computer runs on battery power it will often set the system to a reduced power state which may impact performance, or connected devices and we recommend always powering the computer when using a desktop docking station. For all of our docking stations that provide power to the host computer this will not affect the lifespan of the computer's battery.
Modern Laptop Batteries: Lithium-Ion
Lithium-ion (li-ion) batteries are found in a wide range of consumer electronics from notebook computers and cell phones, to electric cars, power tools, and wearable electronics like wireless earbuds. Li-ion offers fast charging, high-current discharging, fairly long service live compared to other rechargeable battery technologies and are relatively inexpensive.
The life-span of a rechargeable battery depends on many factors including age, temperature history, charging patterns, the chemical composition of the specific battery, and usage. For example batteries stored at 100% charge will degrade faster than batteries stored at 50% charge, this is why most consumer electronics devices arrive from the manufacturer with between 25% to 75% charge.
Lithium-ion batteries are consumable components, however in most modern computers, cell phones, and tablets these are not user serviceable components. To help maintain the battery all modern computers and most consumer electronics will include battery charge and protection circuits. These can be fairly simple, charging up the battery at preset rates depending on the charge level to help maintain the battery life, or complex software controlled charging that monitors battery temperature, voltage and current draw to maintain the fastest charging while maintaining the battery longevity.
Modern notebook computers can be left connected to the original power cable or a docking station with charging capability for extended periods, and do not benefit from regular discharge/recharge cycles. Our docking stations with charging capability rely on USB Type-C Power Delivery to power and charge compatible computers. USB Type-C Power Delivery is a negotiated charging protocol between the host computer and the docking station or USB Type-C power supply, this allows the computer to draw only the power it requires, and even select the best voltage level for powering the computer. In combination with a computer's built-in battery charging controller the computer is capable of maintaining the battery's optimal state even when left connected to a power source for an extended period of time.
Legacy Laptop Batteries: NiCad and NiMH
Older laptops, from the 1990s and some early 2000s, as well as some consumer electronics, and most rechargeable AA or AAA battery replacements use Nickel-Cadmium (NiCad) or Nickel-Metal Hydride (NiMH) batteries. These batteries are slower to charge and discharge than li-ion batteries, and require very simple charge controllers, and in some cases can even be trickle-charged ( very low-current continuous charging ) if desired.
These batteries generally don't have smart charging controllers and to prolong the life of the battery required "training" or fully discharging and recharging the battery every so often. Many laptop manufacturers recommended fully charging and discharging a new laptop 2-3 times to train the battery, this is not necessary with modern laptops.
Conclusion
Modern notebook batteries are managed by the computer's built-in battery charging circuit, and require little to no user intervention to maintain optimal battery health. It does not harm the battery to leave the computer connected to an external power supply, so long as the computer is being used regularly. If the computer is to be stored for a prolonged period then discharging the battery to between 50-75% can help to maintain the battery life.
Batteries are consumable components and degrade over time, however modern notebook computers can extend the battery life generally to meet or exceed the life of the computer's other electronic components.
Which USB-C port on this product can be used to connect it to my computer?
For products which have multiple USB-C ports, normally only one port is capable of connecting the product to a computer. USB-C ports capable of connecting the product to a computer are sometimes called “Host” or “Upstream” ports.
On Plugable products with multiple USB-C ports, the dedicated port for connecting to the computer will be marked with a small laptop icon or the words “To host”.
A product may not be able to function if it is connected to a computer through a different USB-C port. These ports are also known as “Hub" or “Downstream” ports.
Understanding Heat Generation in Electronics
It's not uncommon for users to notice a certain level of heat generation from electronics and by extension, Plugable products during operation. In this knowledge base article, we'll explore the reasons behind this heat generation and why it is considered a normal experience within reasonable limits.
Electronics, by their nature, generate heat during operation. This is primarily a result of the electrical current flowing through various components, such as integrated circuits, transistors, and other electronic elements. As Plugable products are designed to efficiently process and transfer data (among other functionality), some level of heat generation is inherent.
Factors Influencing Heat Generation:
- Power Consumption: The power consumption of a device directly influences the amount of heat it generates. Higher power usage, especially during data transfer or charging processes, can lead to increased heat.
- Enclosure Design: The design of the product's enclosure and its ability to dissipate heat play a crucial role. Adequate ventilation and heat sinks are often incorporated to manage and disperse generated heat effectively. This is evident in our TBT3-UDZ and TBT4-UDZ designs. The metal case in these docks are designed to function as a heatsink with thermal pads placed throughout the enclosure. This allows heat dissipation from inside to the outside, but will also make it feel as if the device is “too hot”.
- Ambient Temperature: The external environment may also play a role. Higher ambient temperatures can contribute to increased perceived heat from the product. This means that summer temperatures may increase the heat generation of not just Plugable products, but many other electronic devices.
Normal Heat Levels: While it is normal for electronic devices to generate heat, Plugable products are engineered to operate within safe temperature ranges. We conduct rigorous testing to ensure that the heat generated during normal operation falls within industry-standard safety parameters. While not all products are or need to be UL certified, we try to go by UL guidelines for thermal readings. The UL threshold is 77C/170.6F, and we aim for around 71C/160F.
Tips for Users:
- Ventilation: Ensure that Plugable products have sufficient ventilation around them. Avoid placing them in enclosed spaces where heat dissipation may be impeded.
- Usage Patterns: Intensive tasks such as high-speed data transfer or charging multiple devices simultaneously may result in increased heat generation. This is generally normal but may be more noticeable in such scenarios.
- Accessories: A number of our devices will allow for the connection of USB accessories and as such, these will require power. If too many “power-hungry” devices are connected, this will cause the device to run much hotter than expected. Be sure to keep in mind the power limits of your dock/device.
In conclusion, experiencing heat from Plugable products is a normal aspect of their operation. Users can rest assured that we prioritize the safety and efficiency of our devices. By understanding the factors influencing heat generation and following simple usage guidelines, users can make the most of their Plugable products while ensuring a reliable and efficient user experience.
How To - Set a Network to Private or Public in Windows 10 & 11
The Windows Firewall may block some networking features when the local network is not set to Private. This article will describe the process for setting the local network, either wired Ethernet or Wi-Fi to be a Private network.
Windows 11
1 - Connect the computer to the network, either wired or wireless
2 - Open the Windows Settings - right-click on the Start Menu and select “Settings” from the pop-up menu
3 - On the left column select “Network & internet”
For Wired Networks
4 - Select the “Ethernet” option
5 - The connected network should be expanded, if not click on “Network Connected" to expand the section
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
For Wi-Fi Networks
4 - Select the “Wi-Fi” option
5 - Select your Wi-Fi network name “properties”
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
Windows 10
1 - Connect the computer to the network, either wired or wireless
2 - Open the Windows Settings - right-click on the Start Menu and select “Settings” from the pop-up menu
3 - Select “Network & Internet” fro the bottom section
4 - Select the “Ethernet” option from the left pane
5 - Select the “Connected” network from the right pane
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
Windows PowerShell
If the option does not show up in the Windows Settings GUI, or if you prefer to use the terminal.
1 - Open a new terminal: Right-click on the Start Menu and select “Terminal”
2 - Run the following command to list the available networks
Get-NetConnectionProfile
PS C:\Users\plugable> Get-NetConnectionProfile Name : Network InterfaceAlias : Ethernet Instance 0 InterfaceIndex : 7 NetworkCategory : Private DomainAuthenticationKind : None IPv4Connectivity : Internet IPv6Connectivity : NoTraffic
3 - Run the following command to set the network to Private
Set-NetConnectionProfile -Name Network -NetworkCategory Private
Where “Network” is the network name from step #2 and “Private” can be either “Public" or “Private”
How to Use Two External Displays with the Lid Closed on MacBook Air and MacBook Pro M3
Overview
With the release of Apple’s M3 CPU chips and the Sonoma 14.6 update your base MacBook Air and MacBook Pro systems with M3 chips can now host two external displays natively in clamshell mode. This guide will walk you through the process of setting up and using two external displays with the lid closed on your MacBook Air or MacBook Pro equipped with an Apple M3 chip.
Requirements
Before getting started, ensure you have the following:
- MacBook Air or MacBook Pro with an Apple M3 chip.
- macOS Sonoma 14.3 or later for an M3 MacBook Air or macOS Sonoma 14.6 or later for an M3 MacBook Pro.
- Two external displays with compatible video inputs (e.g., HDMI, DisplayPort, USB-C).
- A dock or graphics adapter can be used as well.
- External keyboard and mouse (wired or wireless).
- Power adapter or power source for your MacBook
- A docking station that provides adequate charge can be used in place of the native power adapter, be sure to check the wattage your dock provides.
Steps to Set Up Dual External Displays with the Lid Closed
1. Set Up Your External Keyboard and Mouse
- If you’re using a wired keyboard and mouse, connect them directly to your MacBook or Plugable dock.
- For wireless peripherals, ensure they are paired with your MacBook and functioning properly.
- An AC adapter/power cable of some kind will also need to be connected for clamshell mode to function properly. This adapter can be one from a docking station or the included Apple adapter.
2. Connect Your Displays
- Connect the first external display to your MacBook using the appropriate cable (e.g., HDMI, DisplayPort, USB-C)
- Close your laptop’s lid.
- Connect the second external display using a similar method.
- Ensure both displays are powered on and set to the correct input source.
3. Configure Display Settings
- Open System Settings on your MacBook.
- Go to Displays.
- You should see both external displays listed. Arrange them according to your preference by dragging the display icons.
- Adjust the resolution, refresh rate, and other settings as needed.
4. Enable "Clamshell Mode" (Lid Closed Mode)
- With your external displays connected and set up, close the lid of your MacBook.
- Your MacBook will automatically switch to "Clamshell Mode," where the internal display turns off, and the external displays become your primary screens.
- Ensure your MacBook is connected to a power source to prevent it from entering sleep mode.
5. Check the Display Arrangement
- With the lid closed, check that the external displays are functioning as expected.
- If necessary, re-open the Displays settings to adjust the arrangement, resolution, or other preferences.
Troubleshooting Tips
- No Display on External Monitors: If the external displays are not showing anything, open the lid of your MacBook and check the connections.
- MacBook Sleeps When Lid Is Closed: Make sure your MacBook is connected to a power adapter. Clamshell Mode requires the MacBook to be plugged into an external power source.
- Performance Issues: If you experience lag or performance drops, try lowering the resolution or refresh rate of the external displays.
Thunderbolt Dock Users
With these steps, one can use Plugable Thunderbolt docks to enjoy a dual-display setup without the need for additional software installation. The dock leverages the native capabilities of the MacBook Air M3 and MacBook Pro M3, providing a straightforward and efficient solution for expanding your workspace with additional USB ports, audio, and ethernet (as well as the dual displays).
Additional Resources
If you should need any assistance with your setup, please feel free to reach out to our support team at support@plugable.com.
How To: Set the Display Refresh Rate in Windows 11
Many modern displays can support above the default 60Hz refresh rate, however this may need to be manually set within Windows 11. Please note, not all computers, graphics adapters, and docking stations can support all resolutions and refresh rates.
Setting the Display Refresh Rate in Windows 11
1. Right-click on the desktop and select Display Settings from the drop-down menu
2. Scroll down to the Related settings subsection and select Advanced display
3. At the top of the Advanced display window, select the external display from the drop-down menu
4. From the Choose a refresh rate drop-down menu select the desired refresh rate
Refresh Rate Limitations
With Windows 24H2 and newer, dynamic refresh rates are supported, this allows the system to adjust the display refresh rate to save power, up to the selected refresh rate. As a consequence of this new mode, when selecting the display refresh rate you may see an asterisk. This indicates that selecting the specific refresh rate may reduce the display resolution or image quality in order to prioritize the refresh rate. This exposes the refresh rate option from the display even if the display cable or computer is incapable of supporting that refresh rate at the native resolution and is the intended behavior per Microsoft. [1]
In the screenshot below the left side shows the 4K 120Hz capable display limited to 60Hz refresh rate without asterisks, and on the right the same display after setting the refresh rate to “120 Hz*”, the “Desktop mode” resolution has been reduced to 2560 x 1440 (1440p) instead of 3840 x 2160 (4K UHD). Unlike when using the display scaling option this also causes a reduction in image quality. On the right side asterisks are no longer shown in the refresh rate list. Setting the refresh rate back to 60Hz does not change the resolution, you will have to go back one page and set the resolution manually.
References
[1] Windows Insider description of new behavior (https://blogs.windows.com/windows-insider/2023/08/31/announcing-windows-11-insider-preview-build-25941-canary-channel/)
Is this safe to use if my computer doesn't support USB-C Power Delivery?
USB-C Power Delivery (PD) is negotiated between the power-sourcing equipment (e.g., a dock or multiport hub) and the connected host device. During this negotiation, the device offering power communicates its capabilities, and the host determines whether it can accept the power. If the host does not support Power Delivery, no power will be sent to the computer over the USB-C connection. This will allow you to take advantage of other capabilities such as data transfer or video output without risking damage to the computer.
Is there a way to add more displays to my dock?
Extra displays can be added to your docking station by using USB graphics adapters. This allows you to expand your workspace beyond the number of displays natively supported by your dock or computer.
Here’s how it works:
- Ensure your dock has open USB-A or USB-C ports to connect the USB graphics adapter(s).
- Select a Plugable USB graphics adapter compatible with your operating system and monitor specifications. Feel free to contact Plugable support (support@plugable.com) for assistance in selecting the appropriate adapter for your setup.
- Download and install the driver from the "Downloads" section of the product page for the USB graphics adapter on Plugable's website.
- Plug the adapter into an available USB port on your docking station.
- Use an appropriate video cable (e.g., HDMI, DisplayPort) to connect the adapter to your monitor.
Important Considerations:
- Windows supports up to 8 DisplayLink/SiliconMotion-based monitors.
- macOS has a hard limit of 4 DisplayLink/SiliconMotion-based monitors.
- USB graphics adapters use bandwidth and system resources. Connecting multiple adapters can reduce performance.
How Can I Check the Ethernet Adapter Link Rate on my Mac?
One helpful way to identify your ethernet link rate speed is through the System Settings app in macOS. This can help us identify if your Plugable ethernet adapter is negotiating either 1Gbps or 2.5Gbps network speeds. Some routers have a mix of 1Gbps or 2.5Gbps ports, and in the macOS System Settings this will be shown in the Speed field.
In this example, we will be analyzing our USBC-E2500, which is a 2.5Gbps ethernet adapter. This method applies to all of our ethernet adapters, such as:
Navigate to the Network section, select the entry named “USB 10/100/1G/2.5G LAN” with the Green - Connected icon. Expand the Details button, and go to Hardware.
In the field that says Speed, you should see 2500Base-T if the ethernet adapter is connected to a 2.5G ethernet LAN port on your router. If you see 1000Base-T, this means the adapter is connected to a 1G ethernet LAN port. If you are expecting faster network speeds, please see your router's documentation on its multi-gig LAN port.
Choosing the Right USB Type-C Cable for Your Docking Station
At Plugable, we rigorously test our docking stations with the included accessories to ensure they work seamlessly together. One key reason for using the included cable is that not all USB Type-C cables on the market support the same features. Therefore we strongly recommend using the USB Type-C or Thunderbolt cable that comes with your Plugable dock for best results.
Understanding the differences between charging and data cables is essential to fully enable your new docking station, or if you are ever in need of a replacement or longer cable for your docking station. Let’s break it down.
USB Type-C Cables: Charging vs. Data
USB Type-C cables may look identical, but their capabilities can vary significantly. Unfortunately, the USB specifications do not require cables to be clearly labeled, which can make identifying the right cable a challenge.
There are two main categories:
USB Type-C Charging Cables
Charging cables are among the most common Type-C cables available. They typically support:
✔ USB 2.0 data (up to 480Mbps)
✔ USB Power Delivery for charging devices
These cables are often included with smartphones, tablets, and some laptops. They are also frequently sold specifically for charging purposes. However, they lack the necessary conductors for high-speed data transfer and video output.
Fully Featured USB Type-C Cables
Fully featured USB Type-C cables offer full functionality and are required for docking stations. The cables we include with our USB Type-C docks support:
✔ USB4 or USB 3.0/3.1 data (5Gbps or faster)
✔ USB 2.0 data
✔ USB Power Delivery
✔ USB Type-C DisplayPort Alternate Mode for video output
These cables ensure full compatibility with our docking stations, allowing for both high-speed data transfer and external display support.
Thunderbolt Data Cables
Thunderbolt cables are a specialized subset of USB Type-C data cables. They are Intel-certified and typically marked with the Thunderbolt logo (⚡).
✔ Interchangeable with USB Type-C data cables when using USB 3.x devices
✔ Required for Thunderbolt devices to ensure proper functionality
If you're using a Thunderbolt docking station or device, a certified Thunderbolt cable is essential for maximum performance.
What Makes These Cables Different?
The key difference lies in the internal wiring:
🚫 Charging cables lack the conductors required for high-speed data (USB 5Gbps or higher) and video output. Even if a device supports USB Type-C DisplayPort Alternate Mode, a charging cable won’t transmit video.
✅ Data cables include additional wiring to support higher data rates, video output, and greater flexibility in bandwidth allocation.
How Can I Tell the Difference?
🔎 Charging cables are generally thinner and may have smaller connector grips, as they often lack electronic markers. They are typically advertised as:
- "Charging cable"
- "480Mbps data rate"
- Advertised primarily for phones and tablets, not laptops
🔎 Data cables are usually thicker and slightly more expensive due to their additional complexity. Look for statements such as:
- "USB 3.0/3.1," "USB4," or "Thunderbolt"
- "5Gbps" or faster data rates
- Mention of video support for use with external displays
⚠ Cable Length Matters!
Fully featured data cables are typically limited to 1 meter (3.3 feet) to comply with USB Type-C specifications. Charging cables, on the other hand, can be much longer.
Need a Longer or Replacement Cable?
If you need a replacement or a longer cable for your USB Type-C or Thunderbolt docking station, consider these options:
For USB 3.1/3.2 Type-C Docking Stations:
🔗 USB Type-C 10Gbps 1m (3.3ft) Cable
For Thunderbolt & USB4, and USB 3 Type-C Docking Stations:
🔗 Thunderbolt 4 40Gbps 1m (3.3ft) Cable
🔗 Thunderbolt 4 40Gbps 0.8m (3ft) 90° Right-Angle Cable
🔗 Thunderbolt 4 40Gbps 2m (6.6ft) Cable
Note: The USB Type-C 10Gbps cable is only recommended for USB 3.x docking stations, not Thunderbolt docks.
Do Plugable docking stations support automatic Ethernet hardware address (also known as Media Access Control or MAC address) pass through from the host computer?
Plugable does not officially support automatic or automated MAC address pass through functionality from the host computer with any of our currently available docking station products.
As of this writing, the only current exception is the upcoming UD-7400PD docking station → LINK and we speak to its capabilities in this regard here → LINK
However, when our docking station products are used within a Windows environment such behavior can be approximated by other means. The methods to do so and their complexity can vary depending upon the Ethernet network technology on which the dock is based.
To be clear, Plugable does not officially support these approximated solutions. However, we wanted to mention them should they prove helpful to others.
With that said, Plugable docking stations will vary in regard to the Ethernet network chipset used within the product. For general reference, the specific Ethernet chipset used within the product will be listed within the 'Specifications' tab of the docking station's product page.
For example, here are the specifications for the Plugable UD-6950Z docking station which is based on DisplayLink technology, which also provides the Ethernet network chipset functionality.
Note, all Plugable docking station products based on DisplayLink technology will have the DisplayLink logo printed on the product. For general reference, we have a list of all of our DisplayLink-based docking stations available here --> LINK
A DisplayLink-based Ethernet adapter can be configured to use a 'virtual' MAC address that is manually configured within the Windows Device Manager via the adapter's 'Advanced' settings tab, specifically the 'MAC Address' field.
Manually entering a hexadecimal value for the MAC Address field will override the MAC address stored in the Ethernet chipset within the docking station product (in so far as it is presented to the Windows operating system).
To be clear, this only affects the current Windows installation. This does NOT change the Ethernet MAC address stored within the dock itself.
Further to this, Synaptics (the separate company from Plugable who created the DisplayLink technology and also developed the software), have additional options available for configuring a DisplayLink-based MAC address. Some of these options provide a certain level of automation, while others require manual inputs.
DisplayLink outlines the available options within this knowledge base article --> LINK which for general reference is part of their broader 'Corporate Deployment' knowledge base category --> LINK
To be clear, since DisplayLink develops the software DisplayLink also supports the Corporate Deployment options directly.
Should additional assistance be required in regard to the Corporate Deployment options, please contact DisplayLink directly for further assistance --> LINK
Plugable also offers docking station products based on a variety of Realtek, Intel, and ASIX Ethernet network chipsets. For those products, the only option available is to manually configure a 'virtual' MAC address in a similar manner to what we described above.
However, please note that the description of the option to do so within Device Manager will vary. For example, for Intel Ethernet chipsets the option will be called, 'Locally Administered Address'. When using Realtek Ethernet chipsets the option will be called, 'Network Address'.
How to Determine Your USB-C Port Video Capabilities
Understanding your laptop's video output capabilities is essential when connecting to external displays. This guide will help you identify what video technologies your laptop supports and how to find the relevant information.
Common Video Output Technologies
Modern laptops commonly use one or more of the following technologies to transmit video to external monitors:
1. Thunderbolt 3
- Supports video output using the DisplayPort protocol.
- Capable of driving up to two 4K displays at 60Hz or one 5K display at 60Hz.
- Uses a USB-C connector and features a lightning bolt symbol next to the port.
Note: An example of Thunderbolt 3 ports
2. Thunderbolt 4
- Provides improved performance over Thunderbolt 3.
- Supports up to two 4K displays at 60Hz or one 8K display.
- Uses a USB-C connector with the same lightning bolt symbol but may also include the number "4" for identification.
Note: Thunderbolt 4 has the same physical connection and “lightning” bolt icon as Thunderbolt 3
3. USB-C DisplayPort "Alt Mode"
- Allows video output directly through the USB-C port using DisplayPort technology.
- Commonly supports one 4K display at 60Hz, but capabilities may vary.
- Often marked with a DisplayPort ("DP") symbol, but this feature may also be specified in your system's documentation.
Note: An example of a USB-C port with DisplayPort capabilities
How to Identify Your Laptop's Video Capabilities
To determine what video technologies your laptop supports, follow these steps:
1. Check Your Laptop's User Manual:
- Locate your laptop's user manual (often available online from the manufacturer's support site).
- Search for keywords like "Thunderbolt," "DisplayPort Alt Mode," or "video output capabilities."
2. Visit the Manufacturer's Website:
- Go to the support page for your laptop model and find the technical specifications section.
- Look for details on Thunderbolt or USB-C video capabilities.
3. Inspect Your Laptop's Ports:
-
Check for identifying symbols next to USB-C ports:
- Thunderbolt 3/4 ports may have a lightning bolt symbol.
- DisplayPort Alt Mode may be marked with a "DP" icon.
“What if I do not have the above technologies?”: USB 3.0 (Type-A) and Display Expansion
While USB 3.0 (Type-A) ports do not support native video output, they can still be used to extend to two or more displays using software-based solutions like DisplayLink or Silicon Motion's InstantView. These technologies enable video through USB-A ports by utilizing dedicated drivers and software.
If your laptop lacks Thunderbolt or USB-C video capabilities, DisplayLink or InstantView may be a viable alternative for expanding your display setup. A few other things to consider:
- Not all USB-C ports support video output. Checking your laptop's documentation is crucial to confirm this capability.
- Thunderbolt ports are backward compatible with USB-C DisplayPort Alt Mode but provide enhanced performance and flexibility.
If you have further questions about connecting your Plugable docking station or adapter to your laptop, please reach out to our support team for guidance.
Understanding Power Delivery vs. Pass-Through Power Delivery
When choosing a docking station or USB hub, it's important to understand the difference between Power Delivery (PD) and Pass-Through Power Delivery. While both terms refer to charging capabilities, they function differently and impact how power is distributed to connected devices.
What is Power Delivery (PD)?
USB Power Delivery (PD) is a fast-charging standard that allows devices to negotiate power levels dynamically. Key aspects include:
- Enables higher power transfer (up to 100W or more, depending on the device and cable).
- Ensures efficient charging by dynamically adjusting voltage and current.
- Commonly used in USB-C chargers, docking stations, and hubs that provide power directly to laptops, tablets, and smartphones.
Example: A USB-C docking station with PD output can charge a connected laptop while simultaneously powering other peripherals. Additionally, these tend to come with their own AC adapter.
What is Pass-Through Power Delivery?
Pass-Through Power Delivery refers to a hub or docking station that does not generate power itself but instead allows power to pass through from an external power adapter. Key aspects include:
- Requires a dedicated power adapter (e.g., a USB-C PD laptop charger) plugged into the docking station or hub.
- Typically, a portion of the incoming power is allocated to the dock’s functionality (such as data transfer and peripheral connections), and the remaining power is sent to the connected laptop or device.
- May reduce the total power available to the laptop compared to direct charging.
Example: A USB-C hub with pass-through PD allows a laptop's original USB-C PD charger to be connected to the hub, which then distributes power to the laptop while also supporting external peripherals.
Choosing the Right Option
- If you need a docking station that can directly charge your laptop, look for one with dedicated Power Delivery (PD) support.
- If your laptop already has a high-wattage charger and you want to maintain power while expanding connectivity, a pass-through PD hub may be a better choice.
- Be mindful of power limitations with pass-through charging, as some hubs may reserve power for their own operation, reducing the power available for the laptop.
Some examples of hubs with PD pass-through would be our USBC-9IN1E with 140w pass-through charging or our smaller USBC-4IN1 with 100w pass-through.
On the flip side, we have our docking stations that power your devices by themselves. Examples such as our UD-7400PD which is capable of 140w of charge and 5 displays.
Understanding these differences will help ensure you select the right docking station or USB-C hub for your setup. If you have any questions or would like a recommendation, feel free to reach out to our support at support@plugable.com
My Monitors Occasionally Swap Positions on macOS. How Do I Fix This? (BetterDisplay)
There is currently a known bug on Apple Silicon Mac’s that causes some sets of displays to swap positions on wake from sleep. This issue occurs with sets of identical model displays, as this issue is basically macOS misidentifying these displays as one another, causing them to swap positions.
Because this is a macOS issue, there is not much that can be done to fully remedy this issue until Apple addresses it themselves. However, there is an application called BetterDisplay that has been confirmed by customers to help resolve this issue.
BetterDisplay:
To download BetterDisplay, you can find the latest releases on GitHub below:
https://github.com/waydabber/BetterDisplay
Note that there is a premium upgrade that costs money, and the initial download includes a 14 day free trial. But for the purpose of this specific issue, the free version will still have all the features that we need.
Simply click on the “Download app for macOS” button and follow the instructions to install the application. You will get notified that this app is downloaded from the internet. Click Open to open the application:
Start the app from the Applications folder or from Launchpad / Spotlight. Once you launch the app, you should see a page similar to the one below:
Once the app is opened, we are going to want to change the Display Identification Method to “basic + extended identifiers”. This is supposed to make it easier for BetterDisplay to identify and correctly position identical monitors.
To find this setting:
- Ensure that the displays are in the correct arrangement to start
- Select one of your monitors at the top of the settings menu
- Select the “Additional settings…” under the “General Settings”
- Scroll down and find “Display identification method”
- Select “basic + extended identifiers”
This should hopefully resolve the display swapping positions issue!
Notes:
We do not officially support this application, as it just came recommended to us to solve this specific issue. If you run into issues with this application, consult the documentation provided by the developer on the BetterDisplay Github.
The developer has stated that this will not work on DisplayLink based docking stations or graphics adapters. This fix is primarily intended for natively connected displays.
What are the external display capabilities of Apple Mac laptops with an Apple M4 processor as compared to the previous M3, M2 and M1 generations?
As of this writing, there have been four generations of Apple CPUs, the M1, the M2, the M3, and the M4. Each generation has offered three variations, a ‘base’ model (without a suffix) and ‘Pro’ and ‘Max’ models.
Mac laptops based on Apple CPUs have varying native external display capabilities via Thunderbolt/USB-C connections.
Each generation offers different capabilities depending upon which generation and variation of Apple processor is in use.
As of this writing, the M4 generation is the most capable CPU in regard to native external display capabilities as compared to all previous generations and variations.
Apple Mac laptops with a base M4 processor or M4 Pro processor can support up to two external displays regardless of the state of the laptop lid.
Apple Mac laptops with a M4 Max processor can support up to a total of four external displays regardless of the state of the laptop lid.
Apple Mac laptops with base M3 processors can support one external display when the laptop lid is open and the laptop’s internal display is enabled. They can support up to two external displays when the laptop lid is closed and the laptop's internal display is disabled.
Apple Mac laptops with M3 Pro or M3 Max processors can support up to four external displays in total, regardless of the state of the laptop lid.
Apple Mac laptops with base M1 and M2 processors support one external display only.
Apple Mac laptops with M1 Pro and M2 Pro processors support up to two external displays.
Apple Mac laptops with M1 Max and M2 Max processors can support up to four external displays in total.
What information is helpful to provide when contacting Plugable support for assistance?
Here are a few things that you can do when contacting Plugable for assistance that can help expedite the process:
1. Provide a clear, detailed description of the issue, and if possible the steps necessary to recreate it
At first glance this may appear somewhat obvious, however a clear detailed description will help prevent our support engineers from making any incorrect assumptions.
If the unexpected behavior is repeatable, then a list of the steps necessary to recreate the issue will help provide us with important context.
2. Provide the model number of your Plugable product
All Plugable brand products have their model number or ‘stock keeping unit’ (aka SKU) printed somewhere on the product. For example, ‘UD-3900’ or ‘TBT4-UDZ’
When contacting us for assistance, providing the model number will help us route your request to the appropriate support engineer.
3. Provide the purchase information for your Plugable product, such as the Amazon Order ID number
Providing us with the order information for your purchase allows us to do two things:
A. Be sure that we understand precisely which product you are using (we make a lot of different products)
B. Help confirm the unit’s warranty status.
4. Provide us with a diagnostic file from your computer, gathered when the issue is actively occurring or just after the event
Rather than have our customers manually compile and provide information about their computer, we created the PlugDebug utility which automates the process of collecting various pieces of diagnostic information from both Windows and macOS systems.
A PlugDebug file gathered while the issue is occurring (or just after the issue has occurred) will provide important information that will allow us to help troubleshoot the issue.
5. If possible, photographs or a video of the issue
While not always necessary, in some cases having photographs of the problem and/or a video that documents the issue will allow us to ‘see’ what is happening, which in turn may help provide clues to the cause.
Now, to be clear it is not always necessary (nor is it required) to provide all of the information we described above in order for us to be of help. However, the more information we have available the faster are able to help.
As always, if you require assistance with a Plugable product please reach out to us directly via support@plugable.com and we will be happy to assist.
What kind of power adapters come with Plugable products, and how can they be used in different parts of the world?
Introduction
At Plugable, we make a lot of different products that can help make your computing efforts more efficient and productive.
Many of those products (such as our extensive line of docking stations → LINK) require an external power adapter in order to function.
In the course of helping our customers, we often receive questions in regard to what type of power adapter is included with the product and how those power adapters can be used in different parts of the world.
This knowledge base article will help answer those questions.
Power Adapter Types
To put it simply, in general there are two types of power adapters included with a Plugable product.
WALL PLUG
The first type is typically referred to as a ‘wall plug’ or in some cases as a ‘wall wart’ due to its size being larger than that of a standard electrical plug.
This is a small AC to DC power adapter that is completely self contained and plugs directly into an electrical power outlet.
For example, here are photos of the ‘wall plug’ included in the box with the Plugable UD-6950Z docking station.
UD-6950Z U.S. Style Wall Plug Power Adapter:
UD-6950Z U.S Style Wall Plug Power Adapter with Prong removed:
Most ‘wall plug’ style power adapters included with Plugable products support all of the electrical voltages and electrical frequencies used throughout the world.
Note, you can double-check the specifications by looking at the label printed on the wall plug power adapter, or by reviewing the ‘Power’ specifications located on each Plugable product page.
However, the electrical ‘prong’ (the small plastic piece that provides the blades that insert into the electrical power outlet) included with the wall plug will only be for the country in which the product was sold.
To put that another way and using the aforementioned UD-6950Z as an example, if the UD-6950Z is purchased from Amazon.com within the United States, the electrical prong included with the wall plug power adapter will be for a United States style power outlet only.
If the wall plug power adapter needs to be used in a different part of the world, a small inexpensive ‘travel style’ adapter that converts the United States style plug to the local plug type is required.
POWER ADAPTER BRICK
The second type is typically referred to simply as a ‘power adapter’ or by some as a ‘power adapter brick’.
The power adapter is a combination of two separate components. One component is the power adapter itself, which is typically rectangular in shape and why some people refer to it as a ‘brick’.
The second component is the power cable that connects to the power brick. This cable has an electrical wall plug on one end and an industry standard connector on the opposite end.
Looking at two different example power adapters will allow us to expand further.
Let’s look at the power adapter and power cable for our TBT4-UDZ Thunderbolt 4 docking station:
Within the power adapter brick, there is a female inlet:
On one end of the power cable, there is an electrical wall plug.
On the opposite end of the power cable, there is a male connector. This connector will be inserted into the power brick.
There is an international standard that governs the shapes and sizes of the connectors in use, specifically IEC 60320 → LINK
In this example, the male connector on the end of the power cable is known as a ‘C5’ connector:
In this example, the female inlet is known as a ‘C6’ connector.
Some refer to this type of connection as a ‘Mickey Mouse’ connection, because the overall shape of the connector visually resembles the outline of a silhouette of the cartoon character Mickey Mouse.
Now, let’s look at the power adapter and power cable for our USB4-HUB3A Thunderbolt 4 hub.
Within the power adapter brick, there is a female inlet:
On one end of the power cable, there is an electrical wall plug.
On the opposite end of the power cable, there is a male connector. This connector will be inserted into the power brick.
Note that the shapes on the inlet and connector are different as compared to the TBT4-UDZ example we looked at previously, however as was the case before the IEC 60320 standard governs the design.
In this example, the male connector on the end of the power cable is known as a ‘C13’ connector.
In this example, the female inlet is known as a ‘C14’ connector.
While the cables are different, the benefit of both cables being based on a common standard is that replacement cables for use in different parts of the world can typically be sourced locally.
Most Plugable power adapters support the electrical frequency and electrical voltages used throughout the world.
Note, you can double-check the specifications by looking at the label printed on the wall plug power adapter, or by reviewing the ‘Power’ specifications located on each Plugable product page.
If necessary, the power cable can be replaced with a different one with the necessary wall plug in order to use the product in different parts of the world.
Note, when replacing the cable with a different one please be sure to purchase a cable from a reputable brand and that also meets the electrical specifications printed on the power adapter.
Summary
In summary, there are two different types of power adapters included with Plugable products and the power adapters support the electrical voltage and frequency used throughout the world.
However, the plug that inserts into the power outlet will be specific to the region in which the product was sold.
If a wall plug type power adapter is in use, then a ‘travel style’ adapter is needed to convert the power adapter for use in a different part of the world.
If a power adapter brick is in use, then an industry standard replacement power cable can be used to convert the power adapter brick for use in a different part of the world.
Should you have any additional questions, please reach out to us via support@plugable.com and we will be happy to assist you further.
Why Isn’t My Plugable Dock Charging My Laptop?
If your Plugable docking station isn’t charging your laptop, it’s usually due to one of a few common causes. This guide offers some diagnostic checks you can perform to help pinpoint the issue.
Check if Your Dock Supports USB-C Power Delivery
Not all docks charge laptops. Docks fall into three categories:
- Built-in Power Delivery (PD): These include an AC power adapter and can provide 60W, 85W, or 100W to your laptop.
- PD Passthrough: These compact docks require a separate USB-C charger plugged into the dock to pass power through to your laptop.
- Host Charging Unsupported: Some docks do not offer any host charging functionality. These are designed solely for display expansion, data, or peripherals.
Tip: Check your Plugable dock’s product specifications for Power Delivery or charging support. If no charging is listed, the dock may not charge your laptop, and the system would need to be powered separately.
Verify the Dock’s Power Source
For your dock to charge your laptop, it needs to be adequately powered itself.
Check:
- Are you using the original Plugable AC adapter for a built-in PD dock?
- For PD passthrough docks, is your USB-C charger powerful enough for your laptop?
- Are you using a reputable, certified charger - not a low-wattage third-party adapter?
Use a Compatible USB-C to USB-C Host Cable
Cable issues can be a common cause of charging problems.
Check:
- Are you using the USB-C to USB-C cable that came with your Plugable dock?
- If not, does your replacement cable explicitly support USB PD or Thunderbolt?
- Are you accidentally using a USB-C to USB-A cable, which cannot deliver charging to laptops?
- Could the cable be data-only or rated for lower wattage?
Confirm Your Laptop Supports USB-C or Thunderbolt Charging
Even with a PD-capable dock and cable, your laptop must support charging over the USB-C or Thunderbolt port in use.
Common compatibility issues:
- Some USB-C ports are data/video-only.
- Some laptops support charging only through a specific USB-C port.
- Gaming and enterprise laptops often use proprietary power adapters.
Tip: Check your laptop’s specifications or user manual for “USB-C charging” or “Power Delivery (PD) input” support.
Try a Hard Reset
Sometimes, a failed handshake between the dock and laptop prevents charging.
To reset the connection:
- Disconnect the dock from both your laptop and its power source.
- Wait 30–60 seconds.
- Reconnect power to the dock first, then reconnect it to your laptop.
This often resolves temporary communication issues that block charging.
Update Drivers and Firmware
System-level software can directly impact charging behavior - especially on newer laptops and docks.
Update:
- Your laptop’s BIOS or UEFI
- USB-C and Thunderbolt controller firmware and drivers
Tip: Visit your laptop manufacturer’s support site and search by model for the latest system updates.
Compare Power Requirements
If your laptop demands more power than the dock can supply, it may not charge - or may charge very slowly.
Check:
- What wattage does your original laptop charger provide? (Usually printed on the power adapter.)
- What is the maximum PD output your Plugable dock can provide?
- Does your laptop still slowly discharge while docked under heavy use?
Tip: For especially power-hungry laptops (like gaming or workstation models), consider connecting the laptop’s original charger along with the dock to ensure the laptop charges at full speed
Related: Overcoming Power Challenges: Efficiently Charging High-Demand Laptops While Docking
