1.This USB switch allows a computer to share 2 USB device such as printer, scanner, mouse, keyboard, card reader, flash drive and other USB devices. 2.The USB 3.0 switch selector supports ultra-fast USB 3.0 data transfer and is backward compatible with USB 2.0 and USB 1.1 devices. Save your time and increase efficiency. 3.The USB 3.0 switch is suitable for a computer, sharing 2 USB 3.0 peripheral device. For example, two computers can easily share 1 printer. Good helper for work! 4.This USB 3.0 switch has excellent compatibility, no driver, works with Windows 10/8/8.1/7/Vista/XP and Mac OS X, Linux and Chrome OS, just plug and play. LED indicators let you easily know which computer is in control. 5.Compatible with most USB devices: keyboards, mice, USB printers, scanners,USB drives, card readers, etc. Can be used in various workplaces such as: control rooms, offices, libraries, schools. Colour:black Material:plastic Package Contents: 2 x Switcher 4 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.