Tobo The 2-port KVM switch HDMI dual-monitor console controls a computer or laptop that shares a set of USB keyboard, mouse and dual-monitor, and expands or copies the display. NOTE: The computer needs to support 2 screens or more Function. If your computer supports this function but only has one HDMI interface,you can use a converter or conversion cable, such as a VGA/DVI/DP to HDMI converter or Conversion cable.This HDMI USB KVM switch supports resolution 4K @ 60Hz, 2K@144Hz, 1080P@240Hz,RGB 4:4:4 and backwards compatibility. Support 3D,HDR,HDCP, make the image display more delicate and real, the color will be vivid and moving, really is your eye feast. Just use the NEWCARE dual monitor HDMI KVM switch to enjoy high quality video!