Adaptec USB2.0 2PT PCI CARD-KIT (2004600) Connects both USB 2.0 and USB 1.1 devices and run them at their rated speeds Data Transfer Rates - USB 1.1 - up to 12Mbps; USB 2.0 - Up to 480 Mbps Two USB connectors Bus Type - PCI PC Requirements - IBM-compatible PC with 266 MHz or faster processor, available PCI slot, CD-ROM drive, Windows 98SE, 2000, Me or XP