iStarUSA Host Controller Model SAGE-PCIE-2U3 Type: PCI to 1394 / USB Card External USB Ports: 2x USB Ports Data Transfer Rate: Up to 5.0 Gbps Operating Systems Supported: Windows XP/Vista/2003 Server/2008 Server /Win7 - 32bits Windows XP/Vista/2003 Server/2008 Server - 64bits