The Tether Tools TetherPro FireWire 800 9 Pin is the latest version of the popular FireWire peripheral interface. Transfer rates double from the old standard of 400 Mbps to 800 Mbps. This 15 ft (4.6 m) premium cable is a top choice for tethered photographers whose camera and computer utilize the 9-Pin FireWire 800 standard. Low profile casing to fit any digital back, this cable complies with all IEEE 1394b standards for reducing radio frequency and electromagnetic interference. FireWire IEEE 1394b specification is backward-compatible with existing FireWire technology, which makes it ideal to obtain the best performance from your equipment.