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Black 120mm case fan with aluminum blades and 30mm thickness

Cooler Master

Cooler Master MasterFan A120 120mm 30mm case fan MFZ-P2NA-25NPK-R1

SKU CH-ZD9R-SCG5N MPN MFZ-P2NA-25NPK-R1

A 120 mm case fan with 30 mm thickness, aluminum blades and 0.6 mm tip clearance delivers 76.9 CFM airflow at 6.1 mmH₂O pressure

  • Fan size120 mm
  • Number of fans1 Fan
  • Fan depth30 mm
  • Bearing designTwo-Ball Bearing
  • Rotational speed0-2500 ± 10% RPM
  • Airflow rate76.9 CFM (MAX)
  • High static pressure 6.1 mmH2O pushes air through dense radiators
  • Aluminum blades resist flex at 2500 RPM for consistent airflow
  • 6 mm tip clearance reduces leakage and improves pressure delivery
  • Three-phase motor cuts vibration for quieter 29.7 dBA operation
  • Two-ball bearing supports long life at 30 mm thickness

120 mm 30 mm PWM Case Fan

The Cooler Master MasterFan A120 is a 120 mm case fan with a 30 mm frame and a 4-pin PWM connector. Aluminum blades and a three-phase motor reduce vibration while maintaining consistent airflow. A 0.6 mm tip clearance helps limit leakage through restrictive paths. It suits builders who need focused pressure in tight cooling layouts.

Upgrade from standard 25 mm fans

Basic 25 mm fans often lose pressure when pushing air through dense radiators or restrictive heatsinks. The thicker frame and higher static pressure of this model keep airflow moving where thinner fans stall. The jump is worth it when cooling density rises and standard fans cannot sustain delivery. Buyers who only need case airflow without restriction will not benefit from the added depth.

76.9 CFM airflow at 6.1 mmH2O pressure

At maximum speed the fan delivers 76.9 CFM with 6.1 mmH2O of static pressure while peaking at 29.7 dBA. That headroom handles dense radiator stacks and restricted heatsinks without choking. In open mesh cases with no obstruction the extra pressure goes unused, so the fan runs louder than necessary for simple exhaust duty.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 74% of the 8,339 comparable items (median $19.99).
Fan size 120 mm
Typical for this category: the median of 1,114 items is 120 mm.

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Specifications

Product
Brand nameCOOLER MASTER
Model nameMasterFan A120
Part numberMFZ-P2NA-25NPK-R1
Product typeCase Fan
Product colorBlack
Performance
Rotational speed0-2500 ± 10% RPM
Airflow rate76.9 CFM (MAX)
Air pressure rating6.1 mmH2O (MAX)
Power
Power input connector4-Pin PWM
Size & build
Fan size120 mm
Number of fans1 Fan
Fan depth30 mm
Bearing designTwo-Ball Bearing
Shipping weight0.73 kg
Package size239 × 165 × 107 mm
Environment & compliance
Operating noise29.7 dBA (MAX)
More details
LED lightingNo

Questions about this item

Will the 30mm thick frame fit my 120mm mounting holes?

Yes, the fan uses standard 120mm hole spacing; the 30mm depth only adds thickness toward the interior, so check clearance behind the mount.

How do I connect the 4-pin PWM cable so the motherboard controls the 0-2500 RPM range?

Plug the 4-pin connector into a motherboard PWM header and enable PWM mode in BIOS; the fourth wire carries the speed signal for automatic control.

When should I expect the two-ball bearing to need replacement?

Two-ball bearings typically last several years of continuous use; listen for new grinding or rattling noises that indicate wear.

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