1. Custom Floating USB HUB-4port.
2. Available colors: White,Green,Blue,Red,Silver
3. Complying with Universal Serial Bus (USB) Revision 2.0
4. One upstream port (USB A-male) and four downstream ports (USB-B female) as standard.
5. Supports both full-speed (480Mbps) and low-speed (12Mbps) transfer rates
6. Truly plug-and-play automatic system configuration
7. self-powered(driving +5VDC total mini.500mA from host PC) no external    power source needed.
8. Working with Windows 98/98SE/2000/Me and Mac OS8.5~(iBook, PowerBook, iMac, G3,G4)
9. For iMac and IBM PCs