Review on 🔁 HDMI KVM Switch Box, 2-Port with USB 2.0 Hubs, 4K@30Hz, Includes HDMI Cables and USB-B Cables, Backwards Compatible with Lower Resolutions by Kyle Mason

Update: Sometimes it decides I can only use the mouse or the keyboard. Both are wired. It's a bunch of junk right now. It works most of the time but never use a wireless keyboard or mouse as they will fuzz - they work about 75% of the time and then you will see your keyboard double or triple your keystrokes and the mouse arrow will disappear and then back on the screen appear and become unusable. It is also recommended not to connect a camera or microphone to it, because sometimes it does not tell the computer that it is connected, so the computer does not recognize and use it. Finally, the button must be pressed slowly to switch from one computer to another. I think you get what you pay for. I'm giving 2 stars because at least I can use it knowing it's a quirk. Second update: HMDI output for monitoring no longer works. Switch to 1 star because that was literally the whole point; it's essentially broken now.