9cm Four-Wire Adjustable Speed Fan, 12V 3.83W.
Model: ef92251s1-q100-s99.
Bearing: Hydraulic.
Dimensions: 92 * 92 * 25MM (9 * 9 * 2.5 cm).
Voltage: DC 12V.
Current: 3.83W (approx. 0.32A ).
Speed: 550 / 3600rpm 5%.
Pins: 4-pin (standard motherboard 4-pin connector).
Cable Length: 14.80 cm (frame cable length).
Applications: 775 architecture CPU coolers, cases. This fan features PWM temperature control. At room temperature, the fan operates at a very low speed. As the temperature inside the case or around the CPU rises, the fan gradually accelerates, effectively dissipating heat without generating excessive noise.