Corn Electronics 4-Port USB HDMI KVM Switch 4K@30Hz

Four-Port USB HDMI KVM Switch

This Corn Electronics KVM switch lets one user control four computers while sharing a single HDMI monitor and three USB peripherals such as a keyboard, mouse and printer. It ships with four combined HDMI-and-USB cables so every connection is ready out of the box. The device targets multi-system workstations, home labs or streaming setups that need quick access to several PCs without extra displays or input devices.

Push-Button And Remote Switching

Switching between the four connected computers is done either by pressing the button on the front panel or by using the wired remote switch included in the package. LED indicators on the unit show which system is currently active, removing guesswork during rapid changes. A common issue is leaving one or more of the supplied cables disconnected, which prevents the corresponding port from passing video or USB signals.

4K At 30 Hz Sustained Output

The switch supports a maximum resolution of 3840 by 2160 at 30 Hz and remains backward compatible with 1080p at 60 Hz, 720p and 480p signals. Under continuous operation the unit is rated for an ambient temperature range of minus 50 to 80 degrees Celsius, indicating stable video and USB throughput during extended sessions. It does not support higher refresh rates at 4K, so competitive gamers or users needing 4K at 60 Hz should look elsewhere.