Rated Voltage: DC 5V, Current: 0.126A, Power: 0.63W, Speed: 9000PRM, Air Pressure: 6.86mmHO, Airflow: 4.35CFM, Noise: 25dBA Size: 30mm x 30mm x 10mm Application: Suitable for ventilation of Small PC Case/Router/TV box/VR glasses and any small electronic equipment cooling ventilation. 30mm fan 5V which micro size and lightweight design, suitable for 3D printer or any DIY cooling and narrow place. High quality, balance between high air volume and low noise, Suitable for 24 hours / day long-term work, long life: 50,000 Hours.