1)Direct plug & play
2)4 Port Hub
3)1 x USB A male upstream port and 4xUSB A female downstream ports
4)Version: USB 1.1/ USB 2.0
5)Support high-speed 480Mbps,Full-Speed 12Mbps, Low Speed 1.5Mbps
6) Protection for current overload
7) Fully compatible with all USB devices, such as scanner, camera, DV, and MP3 and etc.
8)Supports Windows 98SE/ME/2000/XP Mac 8.6 or higher.