Review on TRENDnet 2-Port 4K DisplayPort 1.2 KVM Switch: Ultra High-Definition Video, Audio, USB 2.0, Integrated Cables (Black) by Micah Manus

The KVM switch was great when it worked. Switching was smooth with no flickering and I never had any issues with my keyboard or mouse. About a year and a half after purchase, port 1 stopped working. Port 2 is still working fine and I've tried swapping the wires to see if it doesn't. Although a single port KVM switch is useless. For the money spent on it I expected it to last more than a year and a half.