We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact black box with four HDMI inputs, one output, USB ports, and a remote control

LUOM

LUOM 4K 4×1 HDMI KVM Multi-Viewer 4K@30Hz 1080@60Hz

SKU CH-5YZ9-KC6S5

Displays four HDMI sources on one screen with five viewing modes and seamless switching up to 4K at 30 Hz or 1080p at 60 Hz

  • TypeHDMI KVM Multiviewer Switch 4x1
  • Ports4
  • Input Connector4 x HDMI 1.4
  • Output Connector1 x HDMI 1.4
  • Maximum Resolutions3840 x 2160
  • Package Contents1xHDMI 4x1 quad KVM multi-viewer 1x USB Power adapter 4x USB
  • Displays four sources simultaneously on one screen
  • Seamless switching between four HDMI inputs without interruption
  • Control via front buttons, IR remote or keyboard hotkeys
  • 4K at 30 Hz and 1080p at 60 Hz supported
  • Four USB 2.0 ports enable KVM keyboard and mouse control

4×1 HDMI KVM Multi-Viewer

The LUOM 4K 4×1 HDMI KVM Multi-Viewer lets you connect four HDMI 1.4 sources to a single display. It shows all four inputs at once using five selectable layout modes or switches seamlessly to a full-screen view. Engineers, exhibition staff and video-conference operators can monitor or present multiple computers from one keyboard and mouse set. Control is handled by front-panel buttons, an infrared remote or keyboard hotkeys.

Thermals noise and power draw

The unit draws power from an included USB 2.0 adapter and has no internal fan, so it runs silently in normal use. Power consumption stays low because the switch only processes HDMI 1.4 signals at up to 4K 30 Hz or 1080p 60 Hz. No active cooling is required, making it suitable for quiet meeting rooms, surveillance desks or display walls where acoustic disturbance must be avoided.

Replaces a basic HDMI switch

If you currently plug and unplug cables to change sources, this multi-viewer removes that wear and lets you view four signals simultaneously. The upgrade is worth it when you need real-time quad monitoring or instant seamless switching between computers. It does not suit users who require 4K 60 Hz output, HDMI 2.0 bandwidth or more than four input ports.

Highlights

  • Displays four sources simultaneously on one screen
  • Seamless switching between four HDMI inputs without interruption
  • Control via front buttons, IR remote or keyboard hotkeys
  • 4K at 30 Hz and 1080p at 60 Hz supported
  • Four USB 2.0 ports enable KVM keyboard and mouse control

Specifications

TypeHDMI KVM Multiviewer Switch 4x1
Ports4
Input Connector4 x HDMI 1.4
Output Connector1 x HDMI 1.4
Maximum Resolutions3840 x 2160
Package Contents1xHDMI 4x1 quad KVM multi-viewer
1x USB Power adapter
4x USB Data cable
1xRemote control
1xUser manual

Questions about this item

How do I connect the four HDMI 1.4 sources and the USB 2.0 cables so the KVM switching works?

Plug each source into one of the four HDMI 1.4 inputs, connect the single HDMI 1.4 output to the display, then run the four supplied USB 2.0 data cables from the switch to each computer; the unit draws power from the included USB power adapter.

What upkeep will the IR remote need over time?

The remote uses a standard coin cell; replace the battery when range drops or buttons stop responding.

At what refresh rate does the 3840 x 2160 output become the limiting factor during long sessions?

The HDMI 1.4 link caps 4K at 30 Hz, so sustained 3840 x 2160 work is locked to that rate; 1080p can run at 60 Hz.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.