One button exchange between 2 computers. Convenient and efficient, 2 computers share 4 USB devices, plug and play.Devices such as HDDs and cameras may require an external supply to operate. When using high- equipment, make to a standard 5-volt adapter for supply.Strong compatibility. Plug and play, suitable for Windows 10/8.1/7/Vista/XP and , Linux and Chrome OS.The LED status indicator accurately shows which computer is controlled.size: 99x50x14mm Material:ABS+metalcolour:BlackPackage Contents:1 x KVM Switch2 x USB CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.