Tera Grand USB 3.0 4 Port Hub with Power Adapter (USB3-VE705) Support data transfer rate: Super- speed (5Gbps), High-speed (480Mbps),Full-speed (12Mbps), Low-speed (1.5Mbps) Compliant with USB3.0, backward compatible with USB2.0/1.1 Equipped with over-current detection and over-current protection One upstream to connect with USB3.0 host, four downstream to connect with USB3.0 device Additional USB cable and external power supply included