[4 In 1 Out HDMI KVM Switch] The KVM Switch can control 4 computers from a set of USB keyboard/mouse/monitor. provides you with great flexibility in integrating cross-platform computer equipment easily. Be using for Enterprise, Office, Multimedia Teaching etc. [More Functions and Special Design] with extra 4 USB interface, 4 computers can share 4 USB devices with one button switch. Can recognize bar code scanner, U disk, printer or other USB devices. Unique design, using sturdy materials, durable, small size. [Wide Compatibility] Driver-free for Windows 10/8/8.1/7/Vista/XP and Mac OS, Linux, and Chrome OS, also support devices like server, hard disk player, game console, DVR, NVR etc. [Ultra HD 8K@60HZ Visual Impact] Supporting resolution 8K@60Hz, make image display more exquisite and realistic, color is more bright and and moving. [One-Key Switching] Designed with a switch button on the KVM Switch box, freely switch between 4 computers by pressing the button.