Firewire 6 pin to 9 pin Cables
FireWire connections are easy to distinguish from USB. They are smaller and tapered on one end, while the USB is flat and rectangular.FireWire is most commonly found on audio and video devices like digital camcorders. It can sustain a high rate of transfer.
The main reason to use FireWire over USB is simply the connection speed. If you have a device that supports both FireWire and USB, you’re better off using the FireWire option – unless your device supports USB 3.0