USB C Switch 3-in-1-Out 20Gbps - Share One USB-C Monitor Between Three

Our review of this USB C switch finds it best suited for power users who need to share a single USB-C or Thunderbolt 4 monitor or dock among three computers without software. The switchs biggest selling point is its simple, hardware-based sharing with an included RF remote and support for fast charging up to 140W, so a single laptop can be charged while active. It is especially attractive when converting a detachable-cable TB4 dock into a three-way KVM, but buyers must heed the compatibility warning about using only the supplied USB4 20 Gbps cables and possible display limits versus 40 Gbps docks.

Key Features

• 20 Gbps USB4 switching: Provides high-speed data transfers up to 20 Gbps for large file moves and responsive peripheral use across three computers.
• Multi-display capable on Windows: Supports up to 8K@30Hz and 5K@60Hz on Windows when the host monitor and dock can accept that bandwidth.
• macOS single display support: Works with Macs but is limited to one external display on macOS, avoiding confusing multi-monitor promises.
• 140W Power Delivery: Delivers up to 140W to the active computer so a laptop can remain charged while using the shared dock or monitor.
• Dock conversion utility: Lets users convert a compatible USB-C or Thunderbolt 4 dock with a detachable host cable into a three-computer KVM station.
• RF remote control: The included remote enables quick switching between connected computers without software or extra cables.

Who It's For

This switch is ideal for professionals with multiple laptops who want to use a single USB-C monitor or TB4 dock as their primary workspace and appreciate the convenience of an RF remote. It appeals to users who have docks with detachable host cables and need a tidy desk setup with power delivery and fast data throughput.

Users who rely on multi-monitor macOS configurations, tethered docks with captive/pigtail cables, or who require the full 40 Gbps bandwidth of some Thunderbolt docks should look elsewhere. Also, buyers must be willing to use the supplied USB4 20 Gbps cables to avoid compatibility problems.

Pros & Cons

Pros

• Fast 20 Gbps USB4 switching keeps transfers and peripherals responsive between three machines.
• High-resolution support on Windows up to 8K@30Hz and 4K@144Hz in compatible setups.
• 140W PD powers the active laptop while sharing a single dock or monitor, reducing cable clutter.
• RF remote makes switching simple and driver free.

Cons

• 20 Gbps bandwidth is lower than many TB4 docks at 40 Gbps and can limit display resolution or refresh rate compared with original dock setups.
• Must use included USB4 20 Gbps cables and avoid captive pigtail docks to ensure compatibility.

Specifications

Our Verdict

The USB C switch is a practical solution for users who want to share a single USB-C or Thunderbolt 4 monitor or detachable-cable dock among three computers while keeping one laptop charged and minimizing desk clutter. It offers strong value when used within its constraints, but buyers should accept the 20 Gbps bandwidth limit and follow the cable compatibility guidance to avoid disappointment.

Frequently Asked Questions

Can I use Thunderbolt 3/4/5 cables?
No. The switch requires the included USB4 20 Gbps cables and does not support Thunderbolt 3/4/5 cables.

Will this work with my Thunderbolt dock?
Yes for docks with a detachable host cable, but the switchs 20 Gbps bandwidth may reduce maximum display resolutions or refresh rates compared to a 40 Gbps dock.

Does it charge all connected laptops at once?
No. Only the currently active, selected computer receives the 140W Power Delivery charging.