Easily add Firewire and USB 2.0 capabilities to a PC with this 4-port combo card! Two external USB 2.0 ports can support up to 127 devices at speeds up to 480 Mbps. Two external IEEE 1394 Firewire ports have the ability to link up to 63 devices! IEEE 1394 ports work with Sony, Panasonic, Canon and many other DV camcorders, making this card ideal for digital video creating and editing!