YOKOMO Racing Performer 30mm Cooling fan (RP-031) 

It is the best racing performer cooling fan for the motor and ESC. Housing outer dimensions are 30 × 30mm, thickness of 10mm, it boasts the largest amount of effective cooling. 
　 
Mounted or pasted to the chassis with double-sided tape, or secure it with screws via a mount. Please use it to connect to the BEC connector, etc. of the receiver with the included extension cord (about 16cm).

• Stock reference: RP-031

Old-code version of RP-031A (supplier now sells the A version). Same specification; separate stock.