StarTech 4 Port IEEE-1394 FireWire PCI Card with Digital Video Editing Kit Model PCI1394_4 Type: PCI to 1394 Card External 1394 Ports: 3 - FireWire 6-pin Female Internal 1394 Ports: 1 - FireWire 6-pin Female Standard: 1394A Data Transfer Rate: 400/200/100 Mbps Operating Systems Supported: Windows 98SE/ME/2000/XP/Server 2003 and up, Mac OS 8.6 and up Dimensions: 4.7 x 3.2 Weight: 0.62 lbs.(include package)