Extra 3 pin ports

[Bdam]

I was looking to add mor fan to my ARRMA big rock blx and I couldn’t find more than two exposed ports. Are there any more ports in places like where Traxxas keeps there’s or is that it?

 

[RCbuzz]

Just need to grab a splitter: https://www.amazon.com/s?k=servo+splitter

Current draw for fans are usually pretty low so you should be able to pull off the receiver no problem.

I like to try and find splitters that are 22AWG. You might as well find a 3 way, you know you are going to want to add lights

 

[Bdam]

Thanks

 

[jkflow]

Just be aware that there is a limit to how much your BEC can provide.
3 Rocket fans on a Firma 150, with stock servo, is the limit.
If you lose power or experience brownouts when steering, you know it was too much.

 

[SrC]

^^^
+1
Heed this rule... Brownouts can get ugly.
The servo usually does take up much BEC amp overhead as it is. (Servo Stall amps are highest) Add up the amp rating specs of all fans and the servo(s) to make sure you are within the ESC's BEC amp specs.