FireWire 800 doubles FW400 bandwidth to 800 Mbps using a 9-pin Beta connector. Common on Mac computers 2003-2012 for cameras, audio interfaces, and storage.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | TPB- | Twisted pair B negative | BUS |
| 2 | TPB+ | Twisted pair B positive | BUS |
| 3 | TPA- | Twisted pair A negative | BUS |
| 4 | TPA+ | Twisted pair A positive | BUS |
| 5 | TPA GND | Twisted pair A ground | GND |
| 6 | GND | Ground | GND |
| 7 | Power | Bus power 8V-33V | PWR |
| 8 | Power | Bus power | PWR |
| 9 | TPB GND | Twisted pair B ground | GND |