The Rosewill RC-504 PCI Express Card turns a PCI Express slot into two external FireWire 400 (1394a) 6-pin ports and one internal FireWire 400 (1394a) 6-pin port which it shares with first external FireWire 400 port. The card can be installed in any available PCI Express slot and supports data transfer rates up to 400Mbps. It is compliant with IEEE 1394-1995, 1394a-2000 and OHCI 1.1 Standards, and supports DV camcorders, hard disk drives, removable drives, scanners, digital cameras, and other FireWire audio/video devices. Onboard power connector provides a reliable power source.