This is a Power Hobby PHBPHF4040BLUE 40x40x10mm Tornado High Speed Aluminum RC Cooling Fan 40mm-Blue.
Full aluminum case, increasing the air flow being directed into the fan! When mounted on a fan mount or esc, the large surface area of the aluminum will act as a giant heatsink as well!
Features:
T6 Aluminum Heat Sink Designed Case
Aluminum casing helps protect the fan blades
Compatible with 2S HV LiPo systems (8.75V max)
Perfect for 1/12, 1/10, 1/8 and 1/5 scale Applications
