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Black rectangular box with four HDMI and four USB ports, a switching button, and a small wired remote control

WRIARICH

WRIARICH 4 Port HDMI USB KVM Switch 3840x2160 30Hz

SKU CH-B044-MEPF3

Four-port HDMI KVM switch shares one monitor, keyboard and mouse across four computers at 3840×2160 30 Hz

  • TypeHDMI, USB
  • Computer Connections4 Ports
  • Video Resolution3840 x 2160
  • Control 4 computers with one keyboard and mouse via 4 USB 2.0 ports
  • Switch between systems using front-panel button or wired remote controller
  • Display up to 3840x2160 resolution at 30 Hz for sharp 4K visuals
  • Works with Windows, macOS, Linux, Chrome OS, PS4 and TV boxes
  • USB-powered design needs no external adapter for simple plug-and-play setup

4-Port HDMI KVM Switch

This WRIARICH KVM switch lets you control four computers from a single keyboard, mouse and HDMI monitor. Each computer connects through one HDMI port and one USB-B port. The unit is powered by a USB cable so no external power adapter is needed. It supports plug-and-play operation without driver installation.

Ideal for multi-system desks.

The switch suits users who need to share one display and input set across four PCs, a console such as a PS4 or PS4 Pro, a TV box or a Chrome OS device. It handles resolutions up to 3840x2160 at 30 Hz, so it is not aimed at buyers who want higher refresh rates or variable-refresh technologies. The USB 2.0 peripheral ports limit bandwidth for high-speed storage or advanced gaming peripherals.

Check cables, ports and resolution before ordering

Verify that each computer has an HDMI output and a USB-B port for the supplied cables. Confirm your monitor accepts 3840x2160 at 30 Hz; lower resolutions are also supported. Ensure the keyboard and mouse are plugged into the dedicated console ports on the switch. The package includes four USB-B male cables, a remote switching button, a charging cable and a user manual.

Highlights

  • Control 4 computers with one keyboard and mouse via 4 USB 2.0 ports
  • Switch between systems using front-panel button or wired remote controller
  • Display up to 3840x2160 resolution at 30 Hz for sharp 4K visuals
  • Works with Windows, macOS, Linux, Chrome OS, PS4 and TV boxes
  • USB-powered design needs no external adapter for simple plug-and-play setup

Specifications

TypeHDMI, USB
Computer Connections4 Ports
Video Resolution3840 x 2160

Questions about this item

What cables come in the box so I can connect four computers to the switch?

The package includes four USB-B male cables and one charging cable; you supply four HDMI cables for the video links.

Will my existing 4K 60 Hz monitor downscale correctly when connected through this 30 Hz KVM?

The switch supports 3840x2160 at 30 Hz and lower resolutions, so a 60 Hz panel will simply run at the highest common rate.

How do I confirm the active computer is actually sending video after I press the front button?

The front panel button illuminates to show the selected port; the monitor will display that computer's desktop when the switch is working.

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