MakerGear M2 Extruder Fan - 40x10mm, 12 volt
This is the smaller of the two fans mounted in front of the extruder and also used inside the electronics case.
This fan has a keyed connector, guarding against incorrect plug-in. All fans should be kept free of dust buildup to prevent failure.
Please Note: M2 3D printers purchased after November 2015 require the 24 volt version of the 40 mm fan— if you are unsure which fan you need, examine the label on your current fan to verify its voltage.