1.USB 2.0 4 Port HUB 2.Supports a data transfer rate of up to 480 Mbps 3.Plug-n-Play, hot swappable USB ... since it is backward compatible with USB 1.1 specifications. It is very easy to use, Plug-n-Play, hot swappable and portable.Features ... up to 480 Mbps40 Times faster than USB 1.1 productsPlug-n-Play, hot swappableBackward compatible with USB 1.1 specificationsSupports Windows 98, 98SE, 2000, ME, ...