Aluminum body ensures solid build quality and also adds to the aesthetic of your Apple products Unique blue LED indicator for power and device status 7 USB 3.0 ports support hot-swap plug and play and very easy to use OS compatibility: Windows 98 Me XP 2000 2003 CE Vista Windows 7 and Windows 8 as well as Linux and Mac OS 10.X High-grade VIA chip-set and 36W adapter guarantee solid operation.