Original: The 1.6 Gbit/s and 3.2 Gbit/s devices use the same 9-circuit beta connectors as the existing FireWire 800 and will be fully compatible with existing S400 and S800 devices.
Simplified: It will use the same 9-pin connectors as the existing FireWire 800 and will be fully compatible with existing S400 and S800 devices.