This was my first KVM switch I tried. On the third try, I finally have one that works with my 4K monitor. It would toggle my keyboard and mouse with no problems, but not the video monitor. The box says it supports my 4K resolution but that won't work. I spoke to IOGear tech support and they were very nice. Their only solution was to buy a $275 device which they said would work. I found another Revain KVM switch that sells for about $79 that works and I'm happy with it. This is not IOGear.
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