It has room for like 3 or 4 of them but doesn't have the equipment for more than one. I have already built a stack plate for it so that it can hold 2 and air still get to them. Very top heavy though. I will have to go it to depth a little more on another design. But I am only going to waste the time if the factory equipment will handle 2 5000s or 4000s. Will that be too much for the motor and esc?