Review on CKLau Ultra HD 2 Port HDMI Cables KVM Switch 4096X2160@60Hz 4:4:4 With Audio Mic Support HDMI 2 by Shawn Parker

Everything connected and no video, no keyboard, no mouse. It turns on and beeps 1 time but nothing. Tried different HDMI cables, nothing. Tried multiple monitors, nothing. Connected directly from the PC to the monitor (bypassing the K switch) and everything is fine. (So it's not the cables!) UPDATE: Found a helpful website. You MUST restart each computer AFTER you turn it on! (Documentation not included!) Two work now, the third doesn't because it has a VGA output. I plugged in a VGA to HDMI adapter but it still doesn't work! Hence 2 stars. UPDATE: Finally works! The small manual that comes with the kit does not provide any information about the product. After playing around with it for 2 weeks, it's finally working as intended. I'm giving 2 stars because it took me too much effort to get this thing to work.