Cables Unlimited 2-Port 34mm Firewire ExpressCard (IOC4800) Compliant with IEEE 1394-1995, 1394a-2000 and OHCI 1.1 standards High speed data transfer rates of up to 400 Mbps Hot swap capabilities allows you to connect or disconnect devices without turning off your laptop Works with DV camcorders, FireWire hard disks, digital cameras, scanners, CD-RW/DVD drives, video game systems, and other audio/video devices Works with DV camcorders, FireWire hard disks, digital cameras, scanners, CD-RW/DVD drives, video game systems, and other audio/video devices