Highlights: FireWire cable 800 9-pin connectors are part of a recent improvement to the IEEE-1394 technology, called FireWire 800 (or IEEE-1394b). The improvement to the specification allows transfer of data at up to twice the speed of the original IEEE-1394 standard. The 9-pin connector is a rectangle with square corners. It has 5 pin contacts on one side, and 4 pin contacts on the other. This new connector type can be adapted to the older 4-pin and 6-pin connector. However, when adapted, the maximum transfer rate will be 400 Mbps. Must have Firewire Cable for Digital Camera, SLR, Machine Vision Camera etc Hardware Industry Standard FireWire 800-400, 1394b Connector Connector A 1 - Firewire 800 (9 pin; IEEE 1394b) Male Connector B 1 - Firewire 400 (6 pin; IEEE 1394b) Male