MakerGear M2 Dual Extruder Fan 50x10mm - 24v 

This fan has longer leads to accommodate the M2 Dual 3D Printer

Mounted at a 45 degree angle in front of the extruder's 40mm fan, this 50 mm fan provides users with greater control over the cooling rate of extruded filament material.

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: Depending on when you purchased your M2, you may need a 12 volt 50 mm fan. If you are unsure which fan you need, you can examine the label on your current fan to verify its voltage.