I think I've seen both eg the more typical 5 pin on most Cameras MP3 players etc and then the 4 pin that comes on the Pentax Optio S4 for example.

We may receive a commission on purchases made from links. Connectors are synonymous with modern electronics, and since the early 2000s, one standard has dominated all others — the USB. While almost ...

"The biggest problem with FireWire was that it was more expensive to implement, requiring its own controller chips in both computers and peripherals." Errr, USB requires its own controller chips on ...