*Complying with Universal Serial Bus (USB) Revision 2.0
*One upstream port (USB A-male) and four downstream ports (USB-B female) as standard.
*Supports both full-speed (480Mbps) and low-speed (12Mbps) transfer rates
*Truly plug-and-play automatic system configuration
*self-powered(driving +5VDC total mini.500mA from host PC) no external power source needed.
*Working with Windows 98/98SE/2000/Me and Mac OS8.5~(iBook, PowerBook, iMac, G3,G4)
*For iMac and IBM PCs