120x120x38 mm

Extremely High Airflow Lower Noise by updated blade and motor designs allow this to put out 275 cubic feet per minute with a noise level of 70db. Size: 120x120x38mm / 4.7x4.7x1.5inch, Dual Ball bearing fan! Very Long lasting.275 CFM, 70 dBA, 5200 RPMOperating voltage: DC 8V to 13.5V (Needs 12V to run at max CFM)120mm fan with Extreme High CFM fan motor4-wires / 4-pin fan, 7-inch long wiresBlack is "-"Yellow is "+"Green is "Tach Output"Blue is PWM