Green PC External 4 Ports USB 3.0 Hub Extension Adapter Super Speed 5Gbps Cable Color: Green Voltage: DC 5.0V 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