【4 Port DisplayPort KVM Switch】- DiamondTiger displayport KVM switch is a display port switch that can help you sharing one monitor and 3 USB 2.0 devices such as scanner mouse keyboard between four computers. One set of input equipments and one HD 4k@60Hz monitor to control all connected computers 【Two Switching Modes】- This 4 computers 1 monitor switch has 2 ways to switch between PCs, panel button and external remote controller. The Remote button is easier to click to toggle between systems. That is why this kvm switch 4 computers 1 monitor displayport will improve your efficiency on multi tasking. (This device does not support keyboard hotkey switching)