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Small black box with four HDMI inputs and one output plus USB ports on the front

Grwibeou

Grwibeou 4-Port HDMI KVM Switch 4K@30Hz

SKU CH-BD6B-RVK1J

Share one monitor, keyboard and mouse across four computers with push-button switching up to 3840 x 2160 at 30 Hz

  • TypeHDMI, USB
  • Computer Connections4 Ports
  • Monitor Connections1 Port
  • Video Resolution3840 x 2160
  • PC SelectionPush Buttons
  • Control four computers with one keyboard and mouse set
  • Push-button or cable switching for instant PC selection
  • HDMI 1.4 and HDCP 1.4 support up to 3840 x 2160 resolution
  • Adaptive EDID and HDCP decryption for broad device compatibility
  • Works with Windows 10, 8.1, 7, Mac OS, Linux and Chrome OS

Four-Port HDMI KVM Switch for Multi-Computer Control

The Grwibeou 4-port HDMI KVM switch lets one keyboard, mouse and monitor command up to four computers. It is built for users who need to manage several systems from a single desk without swapping cables. USB peripherals such as printers or cameras can also be shared across the connected machines. The unit works with Windows, macOS, Linux and Chrome OS.

Video Limited to 4K at 30 Hz Over HDMI 1.4

The switch passes signals up to 3840 x 2160 resolution at 30 Hz through its HDMI 1.4 interface. Higher refresh rates at 4K are not supported by this standard. HDCP 1.4 content protection is handled for protected media playback. EDID and HDCP decryption adapt automatically to different source and display combinations.

Replaces Separate Peripherals for Each Computer

This device removes the need for four separate keyboards, mice and monitor inputs when running multiple PCs. The upgrade is worthwhile when desk space is tight or when workflow demands quick switching between systems. It does not suit users who require 4K at 60 Hz or higher refresh rates for gaming or video editing. Buyers needing more than four computer connections must look elsewhere.

Highlights

  • Control four computers with one keyboard and mouse set
  • Push-button or cable switching for instant PC selection
  • HDMI 1.4 and HDCP 1.4 support up to 3840 x 2160 resolution
  • Adaptive EDID and HDCP decryption for broad device compatibility
  • Works with Windows 10, 8.1, 7, Mac OS, Linux and Chrome OS

Specifications

TypeHDMI, USB
Computer Connections4 Ports
Monitor Connections1 Port
Video Resolution3840 x 2160
PC SelectionPush Buttons

Questions about this item

Should I pick the 4-port model or a smaller one?

The 4-port version lets you connect four computers to one monitor and one keyboard-and-mouse set, so choose it when you need to control four systems; a 2-port switch would only handle two.

What does 4K@30Hz look like on my screen?

It delivers 3840 x 2160 resolution at 30 frames per second, giving sharp text and video for office work and media playback, though fast gaming may appear less smooth.

How does the HDMI 1.4 link limit what I can do?

The HDMI 1.4 connection caps the output at 4K@30Hz and HDCP 1.4, so higher refresh rates or newer copy-protection standards are not supported.

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