WINSINN 40mm fan 12V which micro size and lightweight design, suitable for 3D printer extruder / hotend / nozzle or any DIY cooling and narrow place. High quality Hydraulic Bearings, 2-years Warranty. Balance price and performance, suitable for daily use, life: 35,000 Hours. Rated Voltage: DC 12V, Current: 0.11A, Power: 1.32W, Speed: 7900PRM, Air Pressure: 8.07mmHO, Airflow: 8.5CFM, Noise: 28.2dBA Connector & Line length: XH2.54 11.8in(300mm), Size: 40mm x 40mm x 20mm Widely Used: Suitable for ventilation of Small PC Case / Router / Raspberry pie / TV box / VR glasses and any small electronic equipment cooling ventilation.