USB hub: 1. USB 2.0 hub with 4 port.2. Fully compatible with version 1.1 and 2.0.3. High speed up to 480Mbps.4. Support ORS2.0, Window98, ME, Window2000, Window XP and Vista.5. Hi-Speed downstream ports sufficient for diverse devices6. Quality certified, best service with competitive price7. Plug and play installation8. Lovely design for both easy use and fun