This 3 Port PCI Express FireWire Card lets you add three native FireWire 400 ports to your desktop PC, allowing you to connect IEEE 1394A FireWire devices such as digital cameras, external hard drives, DV camcorders, and more. When two devices are simultaneously connected, this PCIe FireWire adapter reduces performance bottlenecks by offering support for data transfer rates up to 400Mbps to each port. The FireWire card employs dual-bus architecture to provide the maximum bandwidth to each individually connected device, rather than sharing the bandwidth across multiple ports. For broad compatibility, the FireWire card is natively supported in Windows with no additional drivers required, is equipped with a standard profile bracket. Features Three external FireWire400 ports with support for transfer rates up to 400 Mbps Simultaneous operation of multiple high-performance devices Compliant with IEEE 1394 OpenHCI Specifications V1.0 and V1.1 Compliant with PCI-Express Revision 1.0a Plug-and-Play and Hot-Swap compatible Technical Specifications No. of Ports - 3 Interface - FireWire 400 (1394a) Bus Type - PCI Express Industry Standards - IEEE 1394, IEEE 1394a, OHCI, PCI 1.0a Chipset ID - VIA VT6307 Connector Type(s) - 1 x PCI-Express Ports - 1 x Firewire 400 (4 pin; IEEE 1394a) Female, 2 x Firewire 400 (6 pin; IEEE 1394a) Female Maximum Data Transfer Rate - 400 Mbps OS Compatibility - Windows 98SE/ 2000/ XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ 7(32/64bit)/8(32/64-bit) / Mac OS X / Linux System Requirements - 1 x Free PCI Express slot Box Contents - 1 x PCI Express Firewire Card 1 x 4 Pin- 6 Pin Firewire Cable