Are you looking to buy an Airbot Fenix AM32 4in1 55A ESC in Australia?
MINI 4in1 ESC with 20x20 mouting distance, with AM32 Firmwware preinstalled.
Analog current sensor output, 55A per motor
The connector on this 4in1 ESC, changed to BF standard:
http://betaflight.com/docs/manufacturer/connector-standard