Aluratek 2-Port SuperSpeed USB 3.0 PCI Card PCI-Express x1 AUPC100F Type: PCI to USB Card External USB Ports: 2x USB Ports Standard: USB 3.0 Data Transfer Rate: Up to 5.0 Gbps Operating Systems Supported: Windows XP, Vista & 7 Specifications: SuperSpeed data transfer rate up to 5Gbps -10 times faster than USB 2.0 Compliant with USB 3.0 specification Revision 1.0 Backwards compatible with USB 2.0 and USB 1.1 Supports all USB compliant data transfer type: Control / Bulk / Interrupt / Isochronous transfer Compliant with ExpressCard Standard Release 1.0 Supports Bus power (100mA max/port) or 900mA max / port with external power adapter Package Contents: USB 3.0 PCI Express Card Quickstart Guide Installation CD Warranty / Registration Card Parts: 1 year limited