USB 3.0 HUB transmission rate up to 5Gbps. ABS material, fine workmanship, suitable for Tablet PC, convenient to carry. Over-current detection and safety protection device, prevent the reverse flow of current equipment damage). USB interface, no need driver, support play and plug. In line with international safety and quality certification. Support USB devices(With high current equipment should be equipped with own 5V/2A transformer). 4-Port, USB 3.0. 60cm length cable. Fashionable design. Four independent operation interface, need not worry insert interface space is too big and takes other interfaces. Suport DC 5V power input.External interface any standard USB devices. Can external 4 TB mobile hard disk. Compatible with USB 2.0 and USB 1.1. Stable to use. Support play and plug, HOTPLUG function, compatible with Windows7Nista/XP, no need driver program. With LED display, safe and convenient to use.