4pcs 4010 DC 12V Cooling Cooler Fan 2 Wire for DIY 3D Printer (Black). DC 24V 4010 Mini Cooling Fan 40x40x10mm Small Exhaust Fan for 3D. 4010 DC 12V Cooling Cooler Fan 2 Wire for RepRap i3 DIY 3D. It is excellent for cooling heatsinks on hot ends, prints, or other cooling needs, bearing is high precision, long life and low noise.This item is a 3D printer cooling blowing fan, which is made of material.
