new and High speed 2 port usb switch No external power required No software installation required for USB 2.0 Easy and Convenient to use You can share your USB device such as printer or scanner with up to 2 computers Share one USB device between four computers without manually switching out cables Support USB printer, scanner, mouse, keyboard, mobile hard disk, etc Color: Black Size: 11x6.7x2.4cm/4.33x2.64x0.94inch Quantity: 1PC Note: Size for manual measurement, there may be a 0 to 2 for cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Pc x 2 In 1 Out USB Sharing Switch Box(not included USB cables)