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Plugable USB 2.0 2-Port Hub/Splitter
$16.95 USD
SKU: USB2-2PORTAmazon Rating : (1302 Reviews)
Features
- Simple USB Expansion for Everyday Accessories— Turn one USB-A port into two USB 2.0 ports for the devices you use most, whether that is a keyboard and mouse at your desk or essential peripherals in a compact workstation setup. A clean, reliable way to add connectivity without adding clutter.
- Portable— Perfect for remote workers and frequent travelers, this ultra-compact USB-A splitter offers quick, convenient expansion wherever you go. Featuring a built-in 12-inch USB extender cable, it easily fits into any bag and adds additional device connectivity when USB ports are limited.
- Compatibility— Whether you're using a Windows PC, Mac, Linux, or Chrome OS, this USB splitter for laptop is fully plug-and-play. Designed for USB 3.0 and USB 2.0 ports, it supports hot-swapping and offers stable performance across devices.
- Note— This USB hub 2 port is bus-powered; no additional AC power required; intended for low or self-powered devices; not compatible with automotive USB ports
- Lifetime Support— This USB A splitter has been designed with reliability at its core and was built to meet the deployment demands of IT departments and the ease of use necessary for home offices. Includes lifetime support from our North American team of connectivity experts
For volume orders or business inquiries contact sales@plugable.com
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Plugable USB 2.0 2-Port Hub
Featuring a clean, compact design, the Plugable USB 2.0 2-Port Hub (USB2-2PORT) enables two devices to share a single available USB port with full USB 2.0 compatibility and performance. The hub uses a high-quality NEC chipset.
Common Uses for the USB 2.0 Hub
Common uses include connecting both keyboard and mouse via a single USB cable, industrial environments where space is a premium, and for any situation where a simple USB 2-port splitter is required. Great for travel due to the ultra-compact design and built-in 12in USB cable.
No Charging Capabilities
The Plugable hub is for data only and does not support charging of the connected devices. Functions as a USB hub only and will not charge phones, tablets, iPads, iPhones, or other tablet and smartphone devices with or without a PC connected. Not BC 1.1 / 1.2 compatible.
Does It Need Power?
This bus-powered hub shares available power (500mA) from the single upstream USB port to each of the two downstream USB ports. Because power is shared, devices connected via the hub should be low powered (keyboards, mice, etc), or self-powered (printers, powered hubs, externally powered hard drives).
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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.
Self-Powered vs Bus-Powered USB Devices
What Is the Difference Between Self-Powered and Bus-Powered USB Devices?
Self-powered USB device - A device that takes all of its power from an external power supply
Bus-powered USB device - A device that takes all of its power from the host computer's USB interface.
Why High-Current Devices Require External Power
While all USB ports provide some amount of power for attached devices, the available power may not be enough for certain high-current devices such as USB hubs or external hard drives. Bus-powered devices can cause issues if they need more power than is available from the host machine, as each additional device attached to the host computer reduces the total available bus power. If the power runs out, any USB device attached to the computer may suddenly disconnect, which could result in permanent data loss for a USB storage device.
How to Use Devices with Included Power Adapters
Many devices that include power adapters, especially USB hubs, will function in either self-powered or bus-powered mode. If a device comes with a power adapter, it should stay connected at all times, otherwise the device may not function as designed.
Applicable To
USBC-11IN1E, USBC-10IN1E, USBC-9IN1E, USBC-7IN1E, USBC-7IN1, AD-6IN1, USBC-4IN1, USB3-HUB4A, USBC-HUB4A, AMS-5IN1E, USB4-HUB3A, TBT4-HUB3C, USBC-HUB7BC, USB3-HUB7C, USB3-HUB3ME
Do Plugable products support the Apple SuperDrive?
No, Plugable products do not support the Apple SuperDrive.
Why do Plugable products not support the Apple SuperDrive?
The Apple SuperDrive has stringent power requirements that can only be met by directly connecting the SuperDrive directly to the host computer. As a result at this time Apple recommends only using their USB-C adapter cables. Apple provides more information on this topic here → How to connect the Apple USB SuperDrive
Applicable To
- All Plugable brand products
Does the USB2-2PORT Hub charge connected devices?
No. The Plugable USB 2.0 2-Port Hub is not intended for charging any mobile or other devices. Both ports on the 2-port hub share the available power from the one upstream port (at maximum 500mA shared). It is intended for low or self-powered devices and is not suitable for charging.
Is the USB2-2PORT compatible with my car audio system?
No. The USB2-2PORT hub is not compatible as car audio systems do not support USB hubs.
Can I connect two USB bus-powered external hard drives to the USB2-2PORT?
No. One or both external hard drives will drop off the USB bus since this USB hub splits 500mA at best between both USB ports.
Why Do Plugable Electronics Generate Heat During Operation?
Yes, heat generation is a normal byproduct of operation for electronic devices and Plugable products as electrical energy is consumed and transferred. Power delivery, high-speed data transfers, and active peripheral usage naturally convert electrical energy into thermal energy. Plugable designs its products with thermal safety margins to ensure operational temperatures remain within safe limits.
Why Plugable Electronics Generate Heat
Electrical components generate heat as current flows through them, with higher power usage-such as charging host laptops or conducting fast data transfers-increasing thermal output. Many Plugable products, such as the TBT3-UDZ and TBT4-UDZ docking stations, feature aluminum enclosures engineered with internal thermal pads to function as heat sinks. This design transfers internal heat outward to radiate into the room. This protects internal components, however can cause the external surface to feel warm or hot. Higher ambient room temperatures, direct sunlight, and obstructions to air currents around the device may also contribute to increased surface heat. While Underwriters Laboratories (UL) sets a thermal safety threshold of 77°C (170.6°F), Plugable targets a lower operational ceiling of approximately 71°C (160°F) under the heaviest of loads.
How to Manage Heat Generation in Plugable Products
To keep operating temperatures as low as possible, ensure Plugable devices have sufficient ventilation around them and are not placed in enclosed spaces. Avoid connecting an excessive number of power-hungry USB accessories that exceed the power limits of your dock or hub, as higher power draw causes the unit to run warmer (for example USB fans, heaters, cup warmers etc). Expect temporary increases in surface temperature during intensive workloads such as simultaneous multi-device charging and high-bandwidth data transfer.
Conclusion
Experiencing heat from Plugable products is a normal aspect of the operation of high-performance devices. 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.
Applicable To
- Plugable docking stations, including TBT3-UDZ and TBT4-UDZ models
- Plugable USB hubs, video adapters, and electronic accessories
- Electronic devices utilizing metal heat-dissipating enclosures
If you have any questions please feel free to contact us at support@plugable.com and we'll be happy to help!
Why Higher Voltage Power Supplies Are Included with USB 5V Hubs and Docks
Maybe you are looking for a replacement power supply, or maybe you are just curious, but why would a USB hub - which provides 5V to USB devices - would include a power adapter rated at 12V or potentially higher?
Improved Voltage Regulation Under Load
When multiple USB devices are connected - especially high-draw peripherals like external drives or charging phones - the demand on the dock’s internal power can spike. If the power supply were delivering only 5V, any load increase might cause voltage "sag," potentially leading to unstable or unreliable performance.
By starting with a higher voltage like 12V or 20V, the internal voltage regulators within the dock or hub can more reliably and efficiently step down that voltage to a consistent 5V, even under heavy load. It’s similar to having a reservoir or water tower above a village - you’ll have more reliable water pressure regardless of demand.
Greater Power Efficiency Over Distance
Transmitting power at higher voltage and lower current reduces energy loss due to resistance in the wires (which causes heat). By increasing the voltage we can decrease the amperage for the same power, and power loss in the line is directly proportional to amperage squared so even a small decrease in the amperage adds up quickly. Once the power reaches the dock, it's stepped down to the voltages needed for USB ports. This not only enhances efficiency but also makes compact, cooler-running designs possible.
Special Consideration for USB-C Docks
USB-C docks commonly include 20V power supplies, which serve a dual purpose:
- Supplying 5V for downstream USB devices
- Delivering up to 100W (or more) to host laptops via USB-C Power Delivery
With USB Power Delivery 3.1 (EPR), even higher voltages (up to 48V) are supported, enabling future docks and laptops to handle even more powerful devices like desktop replacement laptops or external GPUs.
Will Future Docks Use 48V Power Supplies?
It's likely. While 20V is common now (especially for consumer devices), 24V+ power supplies are widespread in industrial and telecom applications. As high-performance laptops and workstations demand more power, consumer docks may start including 24V, 36V, or even 48V adapters. These would align with USB PD 3.1 specs and simplify designs that support extended power ranges.
However, for now, 12V and 20V remains as sweet spots for cost, availability, and compatibility across a wide range of devices.
In Summary
Higher voltages like 12V or 20V are used for better regulation and more efficient power delivery.
USB-C docks use 20V to support Power Delivery charging host computers or downstream devices (up to 100W).
USB PD 3.1 EPR opens the door to 48V systems, and while uncommon now, future docking stations may shift to 48V as demand grows.
If you have any questions please feel free to contact us at support@plugable.com and we'll be happy to help!
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