40mm Blower fan DC 12V/24V brushless 4010 cooling fan, large air volume, low noise and corrosion resistance. Good operation stability Suitable for 3D printer, raspberry pie hotend / nozzle or any can be used as a replacement fan for any electronic products Size: 40x40x10mm, wire length: 300mm(11.8in) Connector pin pitch: 2.54mm Weight: 28g Certification: FCC, CE certificates to ensure quality. 2 years Warranty