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Black rectangular USB-C switch with short attached cable and select button

LUOM

LUOM TJ-A034 Bi-Directional USB-C Switch 8K@30Hz 4K@120Hz 10Gbps 100W

SKU CH-PBWC-RHD7S

A bi-directional USB-C switch that toggles two computers to one display or one computer to two displays at 8K 30 Hz, 4K 120 Hz, 10 Gbps data and 100 W charging

  • ColorBlack
  • Ports2
  • Cable Length50cm
  • Specifications• Compliant to link with all USB-C input and output • Compli
  • Input Connector1 x Type-C
  • Output Connector2 x Type-C
  • Switch between two computers on one display with bi-directional 2x1 mode
  • Connect one computer to two monitors using 1x2 splitter mode
  • Deliver up to 100W charging while transferring video and data
  • Drive 8K at 30Hz or 4K at 120Hz over DisplayPort 1.4
  • Transfer files at 10Gbps through USB 3.1 Gen 2 bandwidth

Versatile USB-C Switch for Dual-Computer Setups

The LUOM TJ-A034 is a bi-directional USB-C switch designed for users who share one monitor between two laptops or desktops. It also works as a 1x2 splitter to route a single source to either of two displays, though only one screen is active at a time. The unit supports video up to 8K at 30 Hz and 4K at 120 Hz, plus high-refresh 1440p and 1080p modes. It suits professionals and gamers who need a compact, driver-free way to toggle sources with a single button press.

Fits Between Two Hosts

The switch sits between two USB-C source devices and one USB-C monitor, requiring the host ports and the display port to support DisplayPort 1.4 Alt Mode and USB PD 3.0. A 50 cm fixed cable connects the switch to the monitor, while two separate USB 3.1 Gen 2 cables (not included) link the host ports. External power via the supplied micro-USB cable is mandatory for operation. This arrangement frees up desk space by eliminating the need for multiple docks or manual cable swapping.

Passive Cooling with 100 W Power Delivery Overhead

The aluminium-bodied switch relies on passive convection and draws negligible power for its own logic, so it adds no audible noise to the workspace. It passes through up to 100 W of USB Power Delivery to charge the connected laptop while simultaneously handling 10 Gbps data and high-resolution video. Because the device has no fan or active components beyond the switching IC, thermal output remains low during typical daily use.

Highlights

  • Switch between two computers on one display with bi-directional 2x1 mode
  • Connect one computer to two monitors using 1x2 splitter mode
  • Deliver up to 100W charging while transferring video and data
  • Drive 8K at 30Hz or 4K at 120Hz over DisplayPort 1.4
  • Transfer files at 10Gbps through USB 3.1 Gen 2 bandwidth

Specifications

BrandLUOM
SeriesTJ-A034
ModelTJ-A034
Part NumberTJ-A034
ColorBlack
Ports2
Cable Length50cm
Specifications• Compliant to link with all USB-C input and output
• Complies with USB3.1?USB PD 3.0 and DisplayPort 1.4 specification
• Supports: 8K@30Hz
5K@60Hz
4K@120Hz?60Hz
1440P@165Hz?144Hz?120Hz?60Hz
1080P@165Hz?144Hz?120Hz?60Hz
(Depending on the system and the connected hardware)
• Supports transmission speed 10Gbps(USB3.1 Gen2)
• Supports max 100W power delivery
• Supports OS: MAC OS X, Windows
• External power is required. Please be sure to power the switch with the supplied USB to DC cable when you use it.
Input Connector1 x Type-C
Output Connector2 x Type-C
Maximum Resolutions8K@30Hz 4K@120Hz
BandwidthHigh Speed 10Gbps
FeaturesThis USB C switch has two working modes. It can be used as a 2x1 switch, which allows you to connect two sources devices to one display; It can also be used as a 1x2 splitter that enables you to connect one source to two displays(Note that two displays can not work at the same time).
Compliant to link with all USB-C input and output 1. Complies with USB3.1?USB PD 3.0 and DisplayPort 1.4 specification
2. Supports: 8K@30Hz,5K@60Hz,4K@120Hz60Hz 1440P@165Hz?144Hz?120Hz?60Hz 1080P@165Hz?144Hz?120Hz?60Hz (Depending on the system and the connected hardware)
3. Supports transmission speed 10
Dimensions12 x 6 x 0.08 inches
Weight1.2 ounces
Package Quantity1
Package Contents1 x Bi-direction Switch 50cm

Questions about this item

Does the 10 Gbps bandwidth limit how long I can run 4K@120Hz video without dropouts?

The switch is rated for 10 Gbps data transfer and supports 4K@120Hz over DisplayPort 1.4, so sustained use at that resolution stays within the specified bandwidth.

Will the unit get hot or noisy if I leave it powered and switching sources all day?

It has no fan and draws power from the supplied micro-USB cable; the aluminium shell dissipates heat passively, so it runs silent and stays cool under continuous operation.

What cables and power source do I need to have on hand before this switch will work?

You need two USB-C 3.1 Gen 2 cables for the source devices, a monitor with a USB-C port that supports video, and a USB-A power adapter for the included micro-USB power cable.

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