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Cable Matters 20Gbps USB C KVM Switch, 3-in-1-Out, 140W PD Charging
Cable Matters

Cable Matters 20Gbps USB C KVM Switch, 3-in-1-Out, 140W PD Charging

Bottom line: The Cable Matters 20Gbps USB C KVM Switch: Shares one USB-C or Thunderbolt 4 monitor/dock across 3 computers; main trade-off: 20Gbps bandwidth vs 40Gbps docks can limit resolution or stability.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Shares one USB-C or Thunderbolt 4 monitor/dock across 3 computers
  • ✓ 8K@30Hz, 5K@60Hz or 4K@144Hz on Windows via a single TB4 monitor
  • ✓ 140W Power Delivery fast-charges the active laptop while switching
  • ✓ Included RF remote switches inputs with no drivers or software

Cons

  • ✗ 20Gbps bandwidth vs 40Gbps docks can limit resolution or stability
  • ✗ macOS supports only one external display through the switch
  • ✗ Only the active computer is charged, not all three at once
  • ✗ Incompatible with docks that use captive or pigtail cables

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SpecPicks Verdict

SpecPicks scored Cable Matters 20Gbps USB C KVM Switch using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Cable Matters's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Compatibility Warning: Use only the included USB4 20 Gbps cables. Do not use Thunderbolt 3/4/5 cables. The switch works with USB4 and Thunderbolt 4 docks, but its 20 Gbps bandwidth (vs. 40 Gbps for most docks) may reduce display stability or limit resolution/refresh rate compared to a direct connection. Power Delivery depends on the connected dock/monitor design. macOS only supports one external display. Avoid USB-C docks with built-in pigtail / captive cables to prevent compatibility issues.
  • Ultra-Fast 20 Gbps USB4 / USB C Switcher for 3 Computers: Share a USB-C or Thunderbolt 4 monitor or docking station between three computers with this USB C KVM switch. Connect the pigtail cable to your monitor or docking station and the included USB-C/USB4 cables to each computer for seamless sharing. Achieve data transfer speeds up to 20 Gbps, perfect for large file transfers, video streaming, and demanding applications.
  • 8K Video Resolution Support: Experience stunning 8K video output at 30Hz, delivering exceptional clarity and color accuracy for both professional and entertainment use. Supports up to 8K@30Hz / 5K@60Hz / 4K@144Hz on Windows, and 4K@60Hz on macOS when connected to a single USB-C or Thunderbolt 4 monitor. Compatible with popular models including Dell UltraSharp U3224KB, U3425WE, U2723QE, U4025QW, U2720Q, Dell S2722QC, HP E27m G4 QHD USB-C Monitor, HP Z43 42.5-inch 4K UHD Display, HP Z32k G3 4K USB-C Monitor, ThinkVision P27h-20, T32p-20, LG 27UN850-W, and LG 32UN880-B.
  • Docking Station Conversion: Convert any USB-C or Thunderbolt 4 docking station into a fully functional Thunderbolt KVM switch. Connect and control 3 computers using one docking station on Windows, streamlining productivity and maximizing workspace efficiency. Compatible with popular TB4 docks with a detachable host cable: CalDigit TS4/Element Hub, Lenovo ThinkPad Universal TB4 (40B0), Plugable TBT4-UDZ/UDX1, OWC 11-Port TB4/Thunderbolt Go, Anker 777/778, Satechi TB4 Dock, Kensington SD5780T, Cable Matters TB4 Dock 107054, Belkin TB4 Dock Pro INC006, and more.
  • 140W PD Charging: This USB-C switch supports up to 140W Power Delivery to fast-charge your active laptop, tablet or any other USB-C device while transferring data at up to 20Gbps. Connect to a USB-C or Thunderbolt 4 display or compatible dock to keep your device powered. Note: Only the selected (active) computer receives charging - not all connected devices at once.
  • Convenient RF Remote Control for Effortless Switching: Easily switch between three connected laptops using the included RF remote control, without the need for additional software or drivers. Maintain a clean, organized workspace with minimal cables and switches. The remote control adds flexibility, making it easier to manage your devices and ensures the USBC switch fits perfectly into your workspace setup.

Full Specifications

BrandCable Matters
ColorSilver
Model201343
Wattage140 watts
MaterialCopper
TerminalScrew
Unit Count1 Count
Part Number201343
Switch TypeSolid-state
Circuit Type3-way
ConnectivityUSB-C
Contact TypeNormally Open
Control TypeRemote
CompatibilitySwitch, Mac
Material TypeCopper
Mounting TypeTabletop
Connector TypeUsb-c
Control MethodRemote
Operation ModeON-NONE-ON
Number of Items1

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Cable Matters 20Gbps USB C KVM Switch, 3-in-1-Out, 140W PD Charging is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Cable Matters 20Gbps USB C KVM Switch, 3-in-1-Out, 140W PD Charging
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