1)Extent your USB port (4USB port), Connect any USB devices via USB ports
2)Compliant with USB2.0 and backward compliant with USB1.1 standard
3)Support high-speed (480Mbps) and full-speed(12Mbps) date chansfer fee
4)Work with USB bus power or external power adapter
5)Really play & plug
6)No need driver
7)Compact and streamline design on its shape