DYNEX 2-Port FIre Wire 800 and 1-Port FireWire 400 PCIe Adapter Supports serial bus data transfer rates of 100, 200, 400 and 800 Mbps; supports up to 63 devices Compatible with FireWire 800 and 400 devices, including digital camcorders, CD-RW/DVD-ROM drives, portable hard disks, digital cameras and other A/V devices Hot-swappable so you can connect or disconnect devices without powering down the system Works in any available PCI Express (PCIe) slot; throughput rates up to 2.5 Gbps Supports IEEE P1394b and backward-compatible with 1394a-2000 and 1394-1995 standards