Sharing 4 USB devices between 4 Computers * This 4 Port USB 2.0 Switch Selector is an excellent choice to share 4 USB devices between 4 Computers. * It can easily switch between 4 Computers via a push button with LED indicates or desktop controller the active computer. * Ideal for sharing a printer or scanner in a small office environment; It's also great for use at home if you have multiple PCs. Specifications: Type : USB 2.0 KVM Switch 4x4 Functions: 4 Computers share 4 USB ports Free driver, Plug and play Support transfer speed up to 4800 Mbit/s Compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux and Chrome OS; No driver installation required Support Button Switch & Desktop Controller, with two switching methods, easily switch between 4 computers by a single click on the button with LED light color(Blue) indicating the active computer Package included(Depend on your choose) USB Switch*1 Power cable*1 Notice Please connect external power cable first before connected to PCs.