PLANEX 4 PORT SUPERSPEED USB 3.0 HUB/ 5GBPS BUS POWERED W/ POWER ADAPTER 4 Port USB hub (AC Adapter / Bus Power) 5Gbps Super Speed USB 3.0 4-Port Hub 5000Mbps Rohs Compliance Hub-Compatible with Windows 7 and Mac/ US3H400-WH designed in Japan<br><br>5Gbps transfer speeds of up to respond to the next generation standard USB3.0;Compatible with standard 4-port USB Hub USB3.0;Highly compatible with USB2.0/1.1;Compatible with both Windows / Mac;RoHS Compliance， Choice of two power-driven AC adapter / power bus