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Compact black KVM switch with front buttons, LED indicators and multiple HDMI, DisplayPort and USB ports

SMA

SMA KC203DH 3-Monitor KVM Switch 2 PCs 8K60 4K144Hz

SKU CH-GD9H-QAV3D

Share two computers across three monitors and four USB 3.0 peripherals with 8K60 or 4K144Hz video

  • Computer ports2 Ports
  • Monitor ports3 Ports
  • Supported video resolutionHDMI2.1 + DP1.4 KVM switch 2 monitors supports resolution 8K
  • Switching methodPush Buttons
  • Monitor supportHDMI, Displayport, Displayport
  • Power requirementsCome with DC 12 V Power Adapter
  • Control two computers with one keyboard, mouse and three monitors
  • Switch instantly via front buttons or wired remote for tidy desk
  • Four USB 3.0 ports transfer data at up to 5 Gbps
  • HDMI 2.1 delivers 8K at 60 Hz, DP 1.4 delivers 4K at 144 Hz
  • Works driver-free with Windows, macOS and Linux systems

Triple-Monitor KVM for Two Computers

This SMA KC203DH switch lets you control two desktops or laptops with one keyboard, one mouse and three displays. It accepts two DisplayPort 1.4 inputs and one HDMI 2.1 input per computer, then routes the signals to three monitors. Four USB 3.0 ports share peripherals such as printers or scanners at up to 5 Gbps. A wired remote button is included for convenient switching away from the main unit.

Sustained 8K and High-Refresh Operation

The HDMI path maintains 8K at 60 Hz or 4K at 120 Hz continuously, while each DisplayPort path runs 8K at 30 Hz or 4K at 144 Hz without throttling. Both interfaces are backward compatible with lower resolutions and refresh rates. The supplied 12 V DC adapter powers the switch reliably during long work or gaming sessions, keeping video stable and USB devices enumerated.

Compact Metal Chassis with Front-Panel Controls

The 10 x 8 x 4 cm enclosure fits neatly on a desk and includes push-button switching plus LED indicators for active ports. Cables connect at the rear: two DP 1.4 cables, one HDMI 2.1 cable and two USB 3.0 cables are bundled. Each computer must provide two DisplayPort outputs and one HDMI output for the three-monitor layout to function. The switch supports extended mode for three distinct desktops and copy mode for three identical images. Buyers whose systems lack the required video outputs cannot use all three monitors.

How it compares

Measured against everything we stock in KVM Switches & Rack Consoles, at today’s prices. Recalculated every night.

Price $171.99
Pricier than about 74% of the 4,010 comparable items (median $105.49).

Specifications

Product
Model nameKC203DH
Product typeHDMI + 2 Displayport kvm Switch 3 Monitors 2 Computers
Display
Supported video resolutionHDMI2.1 + DP1.4 KVM switch 2 monitors supports resolution 8K@60 Hz/4K@144 Hz and backward compatible with lower resolution
Graphics
Monitor supportHDMI, Displayport, Displayport
Ports & slots
Computer ports2 Ports
Monitor ports3 Ports
USB supportKVM switch dual monitor has 4 UsB ports,data transferrate up to 5Gbp/s(10 times faster than USB 2.0),Use this 2 monitors kvm switch.lt can recognize USB devices like keyboards, mice,printers,scanners,etc,and is backwards compatible with USB2.0 peripherals...
Power
Power requirementsCome with DC 12 V Power Adapter
Size & build
Product dimensions10 × 8 × 4 Centimetres
In the box
In the box1x Triple Monitor KVM Switch, 2x DP1.4 Cable,1x HDMI2.1 Cable, 2x USB 3.0 Cable,1x Power Adapter,1x Wired remote,1x User's manual.
More details
Switching methodPush Buttons
Status lightsYes

Questions about this item

Does the KC203DH generate noticeable heat or noise when left running all day?

The unit has no fan and draws power from the supplied 12 V adapter, so it runs silently and stays cool during continuous use.

What cables and ports must my two computers already provide to use all three monitors?

Each computer needs two DisplayPort 1.4 outputs and one HDMI 2.1 output to drive the three monitor ports simultaneously.

Will the switch pass 4K 144 Hz from an older GPU that only has DisplayPort 1.2?

The switch is backward compatible, so a DP 1.2 source will work but will be limited to that standard’s maximum resolution and refresh rate.

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