Features 3 Ports USB 2.0 and 2 Ports Firewire 1394 combo front bay (optional 5.25" or 3.5') and 3 ports USB 2.0 PCI Card at the back of PC. Provide most convenient, flexible and high multiple connectivity to connect USB 2.0 or FireWire devices into your PC or Macintosh computers. 480 Mbps data transfer rate for USB 2.0, 40 times faster than USB 1.1 400 Mbps data transfer rate for IEEE-1394 (FireWire). Plug & play and Hot Swapping Functions. Specifications Compliant with Universal Serial Bus specification revision 2.0 (Data rate : 1.5/12/480 Mbps) Support provisions of IEEE1394-1995 for high performance serial bus and the P1394a standard. 32-bit 33Mhz hot interface compliant to PCI specification release 2.2 Auto speed selectable USB Type A downstream ports Connects up to a maximum of 127 USB devices through cascading multiple hubs Requirements Windows 98/98SE/2000/ME/XP/Vista MAC OS 10.1 &10.2 Retail Package Content PCI card Front Bay Hub Cables Driver CD