Monoprice 10-Feet 9 PIN/ 4PIN BILINGUAL FireWire 800, FireWire 400 Cable, Clear (100329) FireWire 800 (FireWire 1394b) is the new version of the popular FireWire interface Bilingual FireWire cables allow you to connect older FireWire 400 devices to newer FireWire 800 ports. It doubles the throughput of the original IEEE-1394a FireWire interface from 400Mbps to 800Mbps