IOGEAR's 4-port USB 2.0 hub provides 4 Hi-Speed USB 2.0 ports for your high-speed connectivity needs. This device is USB 2.0 certified and provides a data transfer rate of up to 480 Mbps (high speed). It supports Windows 98SE, 2000, ME, XP, Vista and Mac OS X or later. The MicroHub™ 2.0 also supports USB 1.1 devices since it is backward compatible with USB 1.1 specifications. It is very easy to use, Plug-n-Play, hot swappable and portable. It is backed by IOGEAR's 3 Year Limited Warranty.