NZXT RF-P12SF-B2 120mm 25mm Static Pressure PWM Case Fan

120 mm static-pressure PWM fan

The NZXT RF-P12SF-B2 is a 120 mm case fan built for high static pressure. It uses a fluid-dynamic bearing and a 4-pin PWM connector to vary speed between 500 and 2000 RPM. The blade and frame design targets restrictive spaces such as radiators and dense heatsinks. It ships without LED lighting in a black finish.

Best for radiator and heatsink mounts

This fan suits builders who need strong airflow through tight fin stacks or liquid-cooling radiators. The 4.5 mm H₂O pressure rating and 73.47 CFM flow support demanding thermal loads at up to 30 dBA. It is not intended for unrestricted case ventilation where high static pressure is unnecessary. Buyers who want addressable RGB lighting or a multi-fan kit should consider other options.

4-pin PWM control and 2000 RPM ceiling

Speed is managed by the motherboard through the 4-pin PWM header, allowing automatic curves tied to CPU or coolant temperature. The 500 to 2000 RPM range lets the fan run near-silent at idle and ramp up for heavy loads. Verify that your board provides a 4-pin header for each fan you install.