I was having trouble getting reliable 4K over my KVM. My monitor already has multiple inputs, so I've switched to just using them for video. I just needed something to switch keyboard and mouse back and forth. They've been working great for a few months now. I also like that there are no hotkeys as they can interfere with things like vmware or remote session software when working from home. Just a simple button on the device to switch. If I could change something it would be to have all the ports on one side. Whatever the case, you have cables coming out either side, so cable management is an issue.
CKL Quad Monitor HDMI KVM Switch 4 Port 4K@30Hz with Cables - Extended and Mirrored Display Support for Windows, Linux, and Mac
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