[BrianG]

Originally Posted by Arct1k

...The BEC would still power the fan and the brian board - although easy to to remove the fan plug from the bottom of the MMM and rewire to run off of the RX / UBEC.

The MMM does not have an opto mode which would mean the ESC brian board is powered from the RX and the red wire is left in.

I just took my MMM apart and I could not find a brian board anywhere.