4K120Hz KVM Switch 4 Computers 1 Monitor - High Refresh 4x1 HDMI

In this review the 4K120Hz KVM Switch is presented as a practical tool for users who need to share a single HDMI monitor, keyboard and mouse across multiple machines. It is best for content creators, small offices or power users running up to four computers who want one central workstation without constant cable swapping. The single biggest reason to buy is its support for high refresh and high resolution displays combined with USB 3.0 device sharing, which makes it useful for demanding workflows where smooth motion and fast peripheral access matter.

Key Features

• 4 Port HDMI KVM: Lets one monitor, keyboard and mouse be shared between four computers to reduce desktop clutter and speed task switching.
• HDMI 2.1 support: Capable of 8K@60Hz output and compatible with 4K@120Hz to deliver smoother motion for video editing and gaming workflows.
• Four USB 3.0 ports: Provides up to 5Gbps transfer speeds so external drives, printers and other peripherals operate quickly when switched between hosts.
• Plug and play: No driver installation required and compatible with Windows, Mac and Linux for straightforward setup in mixed OS environments.
• IR extension and controller: Includes an IR receiver cable and a controller so switching can be done from a distance and the unit can sit where convenient.
• Included accessories and support: Ships with power supply, four USB 3.0 cables, IR cable and offers up to 24 months of after-sales service for peace of mind.

Who It's For

This KVM switch is aimed at users who run multiple desktop PCs or workstations and need to consolidate display and peripheral access: video editors who benefit from 4K@120Hz motion, designers needing clear high resolution output, and office users who want to manage four computers from a single desk. It is also suited to mixed OS setups since it supports Windows, Mac and Linux without drivers.

It is not the best fit for setups that rely on adapter cables or conversion (the switch requires native HDMI ports on all devices), and users who need guaranteed zero-drop signal in every environment should test compatibility since some reports mention intermittent disconnections under specific conditions.

Pros & Cons

Pros

• Supports high resolutions and refresh rates for smooth, detailed display output.
• USB 3.0 ports allow fast data transfer and sharing of printers or external drives between computers.
• Easy plug-and-play setup with an IR extender and controller for flexible placement and remote switching.
• Includes power supply and cables plus 24 months of after-sales service.

Cons

• Requires native HDMI ports on all computers and monitor; conversion cables are not supported.
• Some users report occasional disconnections, so compatibility testing with specific monitors and cables is advisable.

Specifications

Product type	4 Port HDMI KVM Switch (4x1)
Video support	8K@60Hz and compatible with 4K@120Hz
USB ports	4 x USB 3.0 (up to 5Gbps)
Compatibility	Windows, Mac, Linux (plug and play)
Included accessories	12V1A power supply, controller, IR cable, 4 USB 3.0 cables, manual
Special features	EDID function and IR extension
Warranty	Up to 24 months after-sales service

Our Verdict

The 4K120Hz KVM Switch is a strong value for users who need to consolidate four HDMI-equipped computers to a single monitor and high-speed peripherals. Its support for 8K@60Hz and 4K@120Hz plus USB 3.0 sharing makes it especially useful for creative professionals and multitaskers, though buyers should ensure native HDMI connectivity and test for any compatibility issues with their specific monitors and cables.

Frequently Asked Questions

Do all computers need HDMI ports?
Yes. The unit requires native HDMI ports on all computers and the monitor; conversion cables are not supported.

Can I share external drives and printers?
Yes. The four USB 3.0 ports support peripherals such as keyboards, mice, printers and external drives at up to 5Gbps.

Is additional software required?
No. The switch is plug and play and is compatible with Windows, Mac and Linux without driver installation.