Hosa FIW-46-106

4-pin to 6-pin FireWire Cable, 6 Feet.

FireWire has gained popularity due to its extremely high data transfer rate—rivaling that of SCSI.  It is used with devices like digital movie cameras, CD burners, scanners, etc…  It can support up to 63 devices at 200-400Mbps over a length of 4.5 meters (15 ft.)  and is hot swappable.  You can think of it as  the bigger, more powerful brother to USB.