This is the Firewire 400 - 6 pin to 4 pin cable. Firewire cables are most often used to connect digital camcorders, external hard drives, and other devices that can benefit from the high transfer rates. Plus has the advantage of being able to transfer power to the device through the same cable that does the data transfer. Internally this cable features a premium shield to reduce EMI/RFI interference and eliminate crosstalk. The cable supports transfer rates of 400 Mbps. Leave other cables in the dust with the high speed transfer rates of the Firewire 400 - 6 pin to 4 pin cable. For more information on our products please contact our customer support at 888-519-9505 For all you cable and connector needs choose show me cables.