Specification120 x 120 x 25 mm ( 4.72 x 4.72 x 1 in. ) Rated Voltage:12V Airflow: 92.3 ±10%CFM Rated Current: 0.45A Speed: 3000 RPM ApplicationHave a wide arrange of applications and options, DIY cooling fan good for electronic equipment ventilation, muffin fan, server rack, X-box, PS4, receivers, amplifier, kegerator, biltong dryer, corner, humidor circulation, video card, LED lights, sound system, PC case, greenhouse, grow tents, mushroom growing or as exhaust box fandehumidifier, air purifier, terrariums vent. Variable SpeedComputer Fan with ac plug,allows fan voltage/speed to be changed. Adjusts fan speed based on usage to optimize airflow and noise. Dual Ball BearingHas a rated life of 50,000 hours and allows the fan to be mounted vertically or horizontally. The impedance-protected motor and pure copper coils provide high resistance to heat, extending the life of the unit. Warranty & Technical supportFor non-h