This product is the extender of USB3.0 protocol, the receiver with four USB3.0 interfaces, It's compatible with USB2.0 and 1.1 protocol equipment1. And suitable for USB printer, U disk, mobile hard disk, USB Somatosensory, camera, touch screen, Keyboard and mouse, USB to video / audio converter and other devices, using a double-shielded network cable CAT6A to extend the distance up to 100 meters.