39;s for sharing a printer or scanner in a small office environment. It& 39;s also great for use at home if you have multiple PC. Features -Color: silver and grey. - Material: Plastic, Metal. - Size: About 6.8x4.5x2cm. - By using this devise, 1 USB device can be shared with 1 to 2 computers can share 1 printer, by this we can cut down office equipment spending and save lots of space - USB 2.0 Sharing Switch is a great solution for sharing USB devices like USB printer, scanner, curve plotter, multifunction printer, equipment with computers. - It& 39;s for sharing a printer or scanner in a small office environment. - It& 39;s also great for use at home if you have multiple PC. - Avoid frequent plug and pull, convenient to work and do not hurt the equipment. - Notice: There is no shortcut key switching under WIN7 system, it can only be switched by installing software.