KVM Switch 2 monitors 2 computers 4K@60HZ HDMI KVM switch allows you to use one set of keyboard and mouse to control 2 computer 2 monitor switch. Share 4 USB devices, USB switcer and keyboard and mouse switch, output has 2 HDMI ports can be connected to 2 monitors. You can use two modes, copy mode: two monitors display the same screen, extended mode: two monitors display different screens. Note: You need your computer to have 2 HDMI output ports to support dual screen display. Stable workingdual monitor kvm switch has an external power supply design and comes with a 5V 2A USB charging cable, when connecting the hard disk and other high-power USB devices externally, please connect the external power supply due to the small current provided by the computer USB port itself. Note: Adapter is not included in the kit.