TESmart HDMI 4K@60Hz Ultra HD 2x1 HDMI KVM Switch 3840x2160@60Hz 4:4:4 with 2 Pcs 5ft KVM Cables Supports USB 2.0 Devices Control up to 2 Computers/Servers/DVR /

SOMETHING of this TESmart 4K HDMI KVM Switch USB2.0 port SHOULD BE NOTED

About Remote Control

If the keyboard cannot switch KVM, please connect the keyboard to the dedicated port for the keyboard and mouse

If the dedicated port does not work for the keyboard and mouse. I am very sorry for the incompatibility of the keyboard/mouse and your computer device.

In order to adapt to various computer devices around the world, our KVM device's dedicated interface for keyboard and mouse is for ordinary standard keyboard and mouse. There may be incompatibility with some mouse or gaming mouse with special buttons

Solution: You can connect your keyboard/mouse to the USB2.0 interface, and you can still use your keyboard/mouse to control your computer device. However, there will be a bit of functional sacrifice----you will lose the keyboard hotkey function and mouse gesture