The 7-port USB 2.0 hub provides 7 high-speed USB 2.0 ports for your high-speed connectivity needs This device is fully compliant to USB 2.0 specifications and provides a data transfer rate of up to 480Mbps It supports Microsoft Windows? 98SE, 2000, ME, XP, Vista, and Mac OS X 10.2 or later The WS-UH2070 also supports USB 1.1 devices since it is backward compatible with USB 1.1 specifications It is very easy to use, supports Plug-and-play function/hot-swap capability, and portable Features: 7 downstream and one upstream ports Supports data transfer rate of up to 480Mbps 40 times faster than USB 1.1 products connect up to 127 devices together (through daisy chaining) Automatically switches to the highest speed supported by peripheral Backward compatible with USB 1.1 specifications Specifications: Housing case: plastic Power voltage: 5.0V Power amps: 2A Power consumption: 5.0V, 2A Ports: 7 USB 2.0 Operating temperature: 20 to 50 degree Celsius Storage temperature: 0 to 70 degree Celsius USB specification: USB 1.1 and 2.0 compliant Transfer rate: 400 to 480Mbps Humidity: 20 to 80% RH, (non condensing) Cable length: 4ft (1.2m) Power adapter: 100 to 240V AC switching Requirements: For PC users: Microsoft Windows 98SE, 2000, ME, XP, and Vista Available USB 2.0 port For MAC users: Mac 8.6 or greater Requires OS X for USB 2.0 support Available USB 2.0 port Package content: High-speed USB 2.0 7-port hub Power adapter USB 2.0 cable