Fangrui Product Details Control 2 Computers With A Single Keyboard And Mouse, And Share 4 Usb 3.0 Devices Including Keyboard, Mouse, Printer And Scanner At The Same Time. This Usb Switch Simplifies Your Workstation Setup By Eliminating The Need For Constant Reconnections And Software Setup With A Simple One-touch Switch Button. The Device Offers Two Ways To Switch Between Computers: Physical Buttons And A Desktop Controller, Facilitating Seamless Switching. Desktop Controllers Allow You To Conveniently Place Switches And Cables Away From Your Desk, Making It Easy To Keep Your Workspace Tidy. Enjoy Data Transfer Rates Up To 5gbps Thanks To 3 Usb 3.0 Ports. This Plug-and-play Switch Supports Multiple Operating Systems, Including , Os, Linux, And Unix, Providing A Worry-free Sharing Experience. For Demanding Devices Like External Hard Drives, The Switch Includes An External Power Supply And 5v 2a Usb Charging Cable To Stable Operation. This Is Especially Useful When Your Computers Usb Port Cannot Provide Enough Power On It