Review on 🖥️ TRENDnet 2-Port HDMI KVM Switch for Controlling Two Computers, Full HD 1080P, HDMI & 3.5mm Analog Audio, Monitor Switch, Windows & Mac KVM Switch Software, White - TK-215I by Luckie Coonrod

This device does not support EDID. That means it doesn't send any monitoring information to either port. If you connect it to two different computers (that's how you'll probably use it), the computer that's not connected thinks the monitor is completely gone, and on most modern computers all the windows on that monitor will go away. Switch to the active monitor. Then when it reconnects it's like plugging in a new monitor and the windows layout probably isn't what you want. Not very practical for significant switching. I do not recommend this device. Also, it took tech support three days to confirm that this is normal behavior to respond to my query.