* Four Sports; * USB2.0 interface, support USB1.0/1.1/2.0; * Built-in overload and short circuit current protection device; Four Sports Usb Hub Features ... , easy to use.*The second generation USB HUB controller.*USB2.0 interface, support USB1.0/1.1/2.0, transmission speed 1.5/12/480MBPS ... Road, Futian District ,Shenzhen.China. Beetle 4 port USB 2.0 Hub