USB3.0 hub is an external (requires a free USB3.0 interface on the computer). Through the USB3.0 data cable for data transmission and power supply, quickly add four speed USB3.0 interface to your computer. Support USB3.0 disk drives, high-resolution cameras, video surveillance cameras, digital video cameras and multi-channel audio and other high-bandwidth peripherals. USB3.0 transfer speed reached 5.0Gb / s (actual speed 80MB / s), down support USB2.0 and USB1.1. It can be used with the widest range of USB devices and allows multiple USB3.0 and legacy USB devices to operate simultaneously. The built-in current protection device protects the connected equipment and the Hub itself for an additional period of time, providing greater durability and reliability.