BYTECC 5 Ports USB 2.0 PCI Controller Card Model BT-U2-410V Type: PCI to USB Card External USB Ports: 4x USB Ports Internal USB Ports: 1x USB Port Standard: USB 2.0 Data Transfer Rate: 480/12/1.5 Mbps Operating Systems Supported: Win 98/98SE/ME/2000/XP Parts: 1 year limited Labor: 1 year limited