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Compact black box with multiple DisplayPort and USB ports on the rear

Corn Electronics

Corn Electronics 2-Port USB 3.0 Triple Monitor KVM Switch DisplayPort 1.4 8K@30Hz 4K@144Hz

SKU CH-K3ZM-FJH4A

Shares keyboard, mouse, three monitors, audio and two USB 3.0 devices between two computers with DisplayPort 1.4 up to 8K@30Hz and 4K@144Hz

  • TypeHDMI
  • Share three monitors between two computers with DisplayPort 1.4
  • Switch USB 3.0 peripherals and audio alongside video
  • Drive-free operation on Windows, Linux and Mac
  • Supports 8K at 30 Hz and 4K at 144 Hz
  • Works with wired, wireless and Bluetooth keyboards and mice

Two-Port KVM for Triple-Display Workstations

This KVM switch connects two computers to a single keyboard, mouse, three monitors, audio and two USB 3.0 peripherals. It targets users who need to operate dual systems across a multi-monitor desk without duplicating input devices. Each source must provide three video outputs to drive all three displays simultaneously. The unit ships with all required input cables and a DC 5 V 2 A power adapter.

Passive Switching With No Active Cooling

The device contains no fans or moving parts, so it adds no audible noise to the workspace. Power draw is limited to the supplied 5 V 2 A adapter, which feeds the switching logic and the downstream USB 3.0 hub ports. Video signals pass through without conversion, so there is no added latency or thermal load from signal processing. The metal enclosure dissipates the small amount of heat generated during normal operation.

Bundled Cables and Peripheral Support Simplify Setup

Included DisplayPort cables let you connect both computers immediately, while the integrated USB 3.0 hub accepts flash drives, webcams or other peripherals shared between systems. Audio and microphone jacks route headset audio to the active computer without re-plugging. The switch supports wired, wireless and Bluetooth keyboards and mice that use a dedicated receiver, though built-in Bluetooth input devices are not supported. Hot-key sequences can be remapped for macOS keyboards.

Highlights

  • Share three monitors between two computers with DisplayPort 1.4
  • Switch USB 3.0 peripherals and audio alongside video
  • Drive-free operation on Windows, Linux and Mac
  • Supports 8K at 30 Hz and 4K at 144 Hz
  • Works with wired, wireless and Bluetooth keyboards and mice

Specifications

TypeHDMI

Questions about this item

How do I connect the three DisplayPort cables and the USB 3.0 upstream cables to each computer so all three monitors work?

Each computer needs three DisplayPort outputs and one USB 3.0 port. Plug the three DisplayPort cables and the USB 3.0 upstream cable into the same computer, then repeat for the second computer. Connect the keyboard, mouse, audio, microphone and two USB 3.0 peripherals to the console ports on the switch.

What maintenance will the included DC 5 V 2 A power adapter need over time?

The external power adapter has no user-serviceable parts. If the unit loses power or becomes unstable, replace the adapter with another 5 V 2 A unit of the same barrel size. Keep the vents clear of dust.

What resolution and refresh-rate ceiling appears first when running three 4K monitors at high refresh rates?

DisplayPort 1.4 bandwidth limits three 3840 x 2160 monitors to 144 Hz each. Pushing higher refresh rates such as 240 Hz requires lowering the resolution to 3840 x 1080 or using fewer monitors.

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