Descriptions: 1.Brand new and high quality. 2.Transfers data at rates up to 5Gbps. 3.Ideal USB expansion for external use. 4.Compatible with USB specification 1.1 and 2.0. 5.Easy installation with no device driver necessary. 6.Supplies USB bus power (when power adaptor connected). 7.4 Downstream (USB 3.0 A-Type) ports and 1 Upstream port. 8.Pocket size with USB 3.0 A-type connector， easy to carry. 9.Automatic switching between self-powered and bus-powered mode. 10.Plug-in and use multiple USB devices simultaneously， plug and play. 11.Per-Port Over-Current detection and protection (when power adaptor connected). 12.Supports High-Speed (5Gbps)， Full-Speed (480Mbps) and Low-Speed(12Mbps) USB device profiles. Specification:
Weight 94g Voltage DC 5.0V Color Black， White， Green Connecting Port Type USB Cable Length Approx.62.5cm Over-Current protection Yes USB port in use LED Indicator Yes Dimension 6.5(W) x 6.5(L) x 1.7(H)cm Compliant with USB Version USB 3.0 \/ 2.0 \/ 1.1 Support MS Windows 2000\/ XP\/ Vista\/ 7\/ Mac OS(10.X or above)\/ Linux Bus-Power limit current protection 900mA (When external adaptor applied) Package Included 1 x USB 3.0 Cable 1 x 4 Ports USB 3.0 Hub