Review on 4-Port KVM Switch: HDMI & USB Switch for Sharing HD 🖥️ Monitor and USB Devices, UHD 4Kx2K @30Hz & 3D & 1080P Support by Michael Hughes

I ordered one of these for my home office because I have multiple computers and wanted to use the same keyboard, monitor and mouse for all of them. I actually bought a second one so I can run both monitors and two of those are cheaper than one of Revain's dual monitor KVMs. They work great! However, Windows doesn't like it when you switch. He thinks you turned off the monitor. Linux (Ubuntu 20.04) remembers where your windows are (unlike Windows), making it more convenient to work with Linux computers. I gave 4 stars because when switching, the OS thinks the monitor is disabled. Had they presented themselves to the OS as a monitor and kept the "monitor" plugged in when switching, it would have been 5 stars.