Plugable UD-6950H USB 3.0 Dual 4K Display Horizontal Docking Station with DisplayPort and HDMI
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- Supports two DisplayPort or HDMI connected displays at resolutions up to 4K@60Hz per display (3840×2160@60Hz) or one single 5K@60Hz display using both DisplayPort outputs. Displays and cables must support the desired resolution
- Equipped with six USB 3.0 ports for peripherals
- Audio input and output ports allow connection of external speakers, headphones or a microphone. Also supports audio pass through via DisplayPort or HDMI cable to a monitor or TV with built-in speakers
- Gigabit Ethernet port for hard-wired network connectivity
- Includes a USB 3.0 Type-C to Type-A cable and a USB 3.0 Type-C to Type-C cable to provide flexible host connectivity
- Supported on modern Windows systems running Windows 10, 8.1, and 7. Additional compatibility information below
A one-stop upgrade for your Windows laptop or desktop the Plugable UD-6950H USB 3.0 Dual 4K Display Horizontal Docking Station with DisplayPort and HDMI allows you to connect up to two additional monitors and up to eight accessories through a single USB cable. Including the latest drivers and firmware for compatibility with Windows 10, 8.1 and 7, it features two DisplayPort or two HDMI outputs for mirroring/extending your Windows desktop to up to two external monitors, a Gigabit Ethernet port, audio input and output ports, and six USB 3.0 ports.
The two DisplayPort outputs are Dual-Mode DisplayPort 1.2 (DP++) ports and they are backwards compatible with previous DisplayPort specifications.
The two HDMI outputs support HDMI 2.0 specifications and are backwards compatible to previous HDMI standards.
To achieve 4K@60Hz each connected monitor and cable must support the desired resolution and refresh rate.
Two DisplayPort 1.2 cables must be connected from our dock to a single 5K display to support 5K@60Hz
DisplayPort equipped monitors and DisplayPort cable must support DisplayPort 1.2 specification in order to support 4K@60Hz. While backwards compatible with DisplayPort 1.1 standards, the resolution will be limited to 4K@30Hz if the display or cable does not support DisplayPort 1.2 specifications.
Our Dual 4K Display Horizontal Docking Station with DisplayPort and HDMI is compatible with most modern laptops and desktops running Windows 10, 8.1 and 7 that meet the Minimum System Requirements below. The installation of DisplayLink graphics software is required for our dock to work properly. DisplayLink drivers can be automatically installed by Windows Update (with an existing Internet connection) or can be downloaded from our drivers download page here (https://plugable.com/drivers/displaylink).
Does not support HDCP copy protected content (Blu-Ray, Netflix, Amazon Prime video, etc.). Our adapter also does not support DisplayPort MST daisy-chain connections or conversion to Dual-Link DVI.
Some G-Sync monitors may not be detected or may not be correctly identified when used with DisplayPort. We recommend using HDMI for G-Sync enable
Conversion to Single Link DVI, and VGA is possible using the following adapters (not included with dock):
To convert the DisplayPort output to DVI: Plugable DPM-DVIF Passive Adapter
To convert the DisplayPort output to VGA: Plugable DPM-VGAF Passive Adapter
*Single Link DVI and VGA are not capable of 4K output, Dual Link DVI is not supported.
Additionally, the Gigabit Ethernet port requires a Full-Duplex network connection from the connected network device (router, switch, etc.).
For optimal performance the below system specifications are recommended:
Operating System: Windows 10, 8.1, or 7
CPU: Intel SkyLake i3 or Intel Core i7, AMD A10 at 2.0GHz or better
Graphics Processor: Intel HD 4000, AMD Radeon HD 8650, NVidia GeForce 7xxM or better
Memory: 8GB RAM
Host connection: USB 3.0 Type-A or Type-C port
Cannot be mixed with non-DisplayLink USB graphics adapters and drivers (e.g. MCT, j5, or SMSC).
Not supported with macOS, Linux/Unix or ARM based Windows or ChromeOS systems.
Supports dual monitors up to 4K@60Hz (3840×2160@60Hz) each with DisplayPort or HDMI, or a single 5K@60Hz monitor with Dual DisplayPort inputs. DisplayPort equipped monitors and the DisplayPort cable must support DisplayPort 1.2 specification and HDMI equipped monitors and HDMI cables must support HDMI 2.0 specification in order to support 4K@60Hz. While backwards compatible with DisplayPort 1.1 and HDMI 1.4 standards, the resolution will be limited to 4K@30Hz.
Does not support DisplayPort MST daisy-chain connections or Dual-Link DVI conversions.
Does not support monitors with 1366×768 optimal resolutions.
Does not support HDCP copy protected content (Blu-Ray, Netflix, Amazon Prime video, etc.)
Suggested for web/productivity software; not recommended for gaming.
We don’t recommend running games on USB attached displays as there are significant compatibility challenges. And even without specific compatibility problems, performance will always be a challenge – the extra CPU work required for USB graphics will be a source of reduced frame rates and problems. Normal desktop and application use are typically fine because they don’t push the system as hard as 3D games do.
Common problems experienced when trying to run a game on a USB graphics adapter include:
Games not launching
Screen going black
Power and Charging
Does not provide power to attached host laptop or tablet; the host system will still require its power cable/charger.
Power switch on the back of the dock is used to control the power to the docking station itself. It cannot control the power of the host system.
What’s in the Box
Plugable USB 3.0 Dual 4K Display Horizontal Docking Station with DisplayPort and HDMI (UD-6950H)
USB 3.0 Type-A to Type-C Cable – 36″ (91cm) long
USB 3.0 Type-C to Type-C Cable – 36″ (91cm) long
US and Canada: Power Adapter, Type-A plug (Input: 120-240V 50/60Hz; Output: 20V at 2.0A) with 46″ (116cm) long cable
Quick Installation Guide
Watch our product video here
Can the UD-6950H charge host computer battery?
The UD-6950H is unable to provide charging capability to the host system.
What is the function of the Power Switch on the dock if it cannot control power to the system?
The power switch located on the back of the docking station is used to control power to the dock, not to the host system. Toggling the power switch will shut off dock functionality, but it will not control power to the computer.
Can I connect a DVI or VGA monitor to this dock with an adapter?
Yes, you may use Passive or Active adapters in order to convert the DP++ signal to DVI or VGA. We have tested and can recommend our Plugable Passive DisplayPort adapters:
- Plugable Passive DisplayPort to DVI adapter – Max resolution: 1920×1200@60Hz
- Plugable Passive DisplayPort to VGA adapter – Max resolution: 1920×1200@60Hz
I have never used a laptop or desktop with more than one monitor before. Now that my Windows system has more than one display I am not sure how things are supposed to work or how to change them. Do you have any videos that can help?
We have a produced a series of short videos that introduce the concepts of multi-monitor setups, how to make changes to the way things behave and how to solve common problems. The direct links to the videos are:
- Introduction to multiple displays in Windows
- Common multi-monitor problem – spatial orientation
- How to make a display the ‘Main’ display in Windows
- Multi-monitor problem – spatial orientation part two
- Introduction to display scaling in Windows
I installed the dock on my laptop and everything works well with the laptop lid open. However, when I close the laptop lid the monitors connected to the dock turn off and the laptop shuts down. How do I fix this?
Windows has special power management settings that control what happens when the laptop lid is closed. If this happening, these settings need to be changed. Please right-click on the Start button and select ‘Power Options’ from the menu.
From the choices present on the left-hand side of the Power Options window, please click on ‘Choose what closing the lid does’. ** Important note – if you are running the Creators Update (or newer) to Windows 10, you will have click on the ‘Additional power settings’ option to access this window **
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.
If I add the dock to my system to add additional monitors, does that prevent any of my system’s built-in video outputs from working? For example, if I connect the unit to my Surface Pro 4 tablet, does that prevent the built-in mini-DisplayPort output from working?
No, the docking station’s presence on your system will not preclude the use of any of your system’s built-in video outputs.
Does the docking station support audio pass through to my display with built-in speaker?
Yes, if your display has built in speakers and are connected to our dock via DisplayPort or HDMI, audio should be sent to the display when the Plugable Audio device is set as the Default Playback Device within Windows’ Sound settings.
When I have two displays with built-in speakers connected to the dock audio is sent to both displays. Is this expected and how do I resolve this?
This is expected because DisplayLink has enabled this functionality to send audio to both connected displays. As a workaround, we recommend muting the display from which you do not want audio to be playing.
I have headphones or speakers connected to the analog audio output jack on the front of the dock, but no sound is coming out. How do I fix this?
The first thing to check when this happens is that the default Playback device is set correctly within Windows. We have a short video that shows how to do this here
What does the blue LED on the Plugable UD-6950H indicate?
The blue LED indicates that the Plugable UD-6950H is receiving power from the adapter.
What do the green and amber LEDs on the Ethernet port on the Plugable UD-6950H indicate?
The green link LED on the Ethernet port on the Plugable UD-6950H is an indication that the Ethernet cable plugged into the port is live and it stays steady as long as the live cable is plugged in. The blinking amber activity LED is an indication that data is transferring through the port. Both these LEDs will not light up when:
- The DisplayLink driver for the dock has not installed properly or is corrupted
- The Ethernet Cable plugged in is not live or is faulty
- The network device to which the dock is connected only supports half-duplex communication (see next FAQ question below)
- The port has failed
When I plug an Ethernet cable into the dock, none of the LEDs light up, and I do not get assigned a valid IP address. What could be causing this?
The Ethernet controller in the docking station requires a full duplex connection. Half duplex connections are not supported.
Often, the issue is caused by older Ethernet hubs and/or cabling that do not support full duplex connections.
Why does the “Display Color Calibration” tool in Windows seems to have no effect on the display(s) attached to my dock?
The DisplayLink GPU does not support color calibration functionality. Most monitors have built-in controls that can be used to adjust the characteristics of the display, though we realize this approach may not be ideal in all cases. For environments that necessitate near-perfect color reproduction and display calibration capabilities via software, a dedicated graphics card is recommended.
I use an application to change the color of my display to make it easier to see (like the f.lux application) but it doesn’t seem to affect the display I have connected to the dock. Why is this?
As mentioned above, the DisplayLink driver does not currently support this type of color adjustment so applications like f.lux will not affect displays connected to the dock. DisplayLink (the maker of the chip in the dock and author of the driver) is working to add this functionality in the future. Please see this post on the DisplayLink website for more information and the current state of the project.
While I can adjust the brightness of my internal laptop display or directly connected external display using the Windows Display Settings application, this option is grayed out and not available for the displays attached to the dock. Is something wrong?
Windows does not have the ability to adjust the brightness of a USB-attached display, so the behavior is expected. We recommend making use of the display’s internal on-screen menu options to adjust the brightness.
I cannot use my Intel, Nvidia, or AMD/ATI graphics utility to manage the monitors connected to the dock. Why is this?
The utilities provided by Intel, Nvidia and AMD/ATI are designed to only recognize and work with graphics adapters made by their respective manufacturers and they will not recognize USB-attached displays connected to the dock. It is recommended to use the facilities built-in to Windows to manage the displays connected to the dock (‘Display Settings’ on Windows 10 and ‘Screen Resolution’ on Windows 8.1 and 7).
Are Plugable USB video adapters or docking stations compatible with Touchscreens?
Touchscreens that do not require drivers and use the host’s operating system’s built-in USB Human Interface drivers (HID) to record touch inputs can be made to work with our products, but Plugable does not provide support for doing so due the complexity of multi-monitor touch screen setups.
Why does my wireless mouse or keyboard appear sluggish or not work properly when used with the dock?
Most USB receivers for wireless mice and keyboards operate in the 2.4Ghz band. When connecting the receiver to any USB 3.0 port there is potential for interference that can affect the devices performance. The most effective method is to add a short USB 2.0 extension cable between the dock and the receiver to mitigate the effect, and many wireless keyboards and mice come with such a cable for this reason.
Intel has a technical whitepaper on the behavior for those interested here:
When I connect the dock to my system, my internal Wi-Fi adapter stops working or suffers from poor performance. Why is this happening?
There are several factors that can cause this to happen, along with several potential fixes. Please see our blog post on the topic for more information.
I have a cable with a DisplayPort connector on one end and an HDMI connector on the other. Can I use this cable to connect an HDMI display to one of the DisplayPort outputs of the dock?
The DisplayPort ports on our dock should be able to support a DisplayPort to HDMI cable or adapter. However, please ensure that the specific adapter or cable can support the desired resolution of the monitor.
Can I use the dock in conjunction with a KVM switch?
No, Plugable does not recommend or support using our dock with a traditional KVM switch. If you simply need to share the dock between two systems, the dock can be manually disconnected from the first system and then manually connected to the second system. For those that would like a more permanent solution that does not require disconnecting the unit, our USB 3.0 Sharing Switch can be used to share the dock between two systems (the dock can only be used by one system at a time).
My G-Sync monitor is not detected when connected to the DisplayPort output of the docking station but works on HDMI, is this normal?
Some G-Sync controllers are not compatible with our DisplayLink DL-6950 based docking stations. We recommend using the HDMI input on these displays ( if available ) as HDMI and DisplayPort will have the same performance and quality from the docking station, G-Sync is not a supported feature of the docking station.
After the Windows Anniversary or Creators Update, applications that make use of OpenGL (like SketchUp for example) are not working properly and/or produce an error message when launched while the dock is connected to my system. Why is this happening and how do I fix this?
Microsoft and DisplayLink (the maker of the chip in our dock and author of the driver) have identified a bug within the Windows 10 Anniversary and Creators Update. With the Anniversary or Creators Update to Windows 10, Microsoft has now integrated support for the DisplayLink technology used in our docking station into Windows itself, and in certain cases applications which make use of OpenGL may not work as expected.
For example, the SketchUp application requires the use of graphics adapter that supports a standard known as OpenGL -> http://help.sketchup.com/en/article/114278
In some instances, Windows mistakenly directs the tasks intended for the system’s internal graphics adapter (which does support OpenGL) to the DisplayLink-based docking station. Our docking station is not a traditional graphics adapter in and of itself (it relies on the CPU and internal graphics adapter to work), and this results in the incorrect behavior or error message. DisplayLink speaks to this issue directly here -> http://support.displaylink.com/knowledgebase/articles/942862-my-device-is-not-working-properly-on-windows-10-an (under the section ‘OPENGL 1.1 REPORTED INSTEAD OF 4.X’)
Pending Microsoft fixing the issue within Windows itself, there are two possible workarounds. The first is to configure Windows to have the ‘Main’ display set to a display directly connected to your internal graphics adapter, whether that is an internal laptop display or another external display connected to one of the systems built-in video outputs (a quick guide to doing so is here -> https://youtu.be/7nnKztRZXsw).
If that doesn’t prove a suitable workaround, booting the system without the dock connected, launching SketchUp (or any other OpenGL application), and then connecting the dock may also help.
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