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Four black 120 mm case fans with 3-pin connectors, 25 mm thick, matte finish

Cooler Master

Cooler Master R4-S2S-124K-GP Silent Fan 4-pack 120mm 1200 RPM 19.1 dBA

SKU CH-01B3-1K4W2 MPN R4-S2S-124K-GP

Four 120 mm sleeve-bearing fans move 44.73 CFM at 19.1 dBA with 3-pin connectors

  • Fan Counts4 Fans
  • Fan ControllerNo Controller
  • TypeCase Fan
  • CompatibilityCase
  • Fan Thickness25mm
  • Bearing TypeSleeve
  • Quiet computing with ultra-low 19.1 dBA noise
  • Strong 44.73 CFM airflow improves case cooling
  • Four fans in one pack for full system coverage
  • Sleeve bearing rated for 30000 hours lifespan
  • RoHS compliant materials reduce environmental impact

Cooler Master Silent Fan 4-Pack

This kit contains four 120mm case fans designed for quiet system cooling. Each unit spins at 1200 RPM to deliver 44.73 CFM of airflow while producing only 19.1 dBA of noise. The sleeve bearing is rated for 30000 hours of operation. Power is supplied through a standard 3-pin connector at 12VDC.

Ideal for Quiet Builds, Not for Speed Control

Builders seeking a silent, low-cost way to populate multiple case mounts will appreciate the ultra-low acoustic profile. The fixed 1200 RPM speed suits constant-airflow configurations without software tuning. Systems requiring PWM speed curves, higher static pressure for dense radiators, or addressable lighting should consider alternative models.

1200 RPM Fixed Speed Defines the Fit

The single specification that decides suitability is the non-adjustable 1200 RPM operating point. It locks both the 44.73 CFM airflow and the 19.1 dBA noise floor, so the fans cannot be slowed for quieter idling or sped up for heavier loads. Verify that your motherboard headers and thermal targets match this constant output before purchasing.

Points forts

  • Quiet computing with ultra-low 19.1 dBA noise
  • Strong 44.73 CFM airflow improves case cooling
  • Four fans in one pack for full system coverage
  • Sleeve bearing rated for 30000 hours lifespan
  • RoHS compliant materials reduce environmental impact

Caractéristiques

BrandCOOLER MASTER
SeriesSilent Fan
ModelR4-S2S-124K-GP
Fan Counts4 Fans
Fan ControllerNo Controller
TypeCase Fan
CompatibilityCase
Fan Thickness25mm
Bearing TypeSleeve
RPM1200 RPM +/- 10%
Air Flow44.73 CFM
Noise Level19.1 dBA
Power Connector3 Pin
ColorBlack
FeaturesHigher air flow to enhance cooling performance.
Ultra silent operation at 19 dBA.
Economic solution for perfect performance.
RoHS compliance for protecting the environment.
Voltage: 12VDC
Current: 0.15A
Input: 1.8W
Air pressure: 1.65 mmH2O
Fan Life Expectancy: 30,000 hrs
Weight: 0.26 lb.
Dimensions120.00 x 120.00 x 25.00mm
Poids d’expédition0.52 kg
Dimensions du colis152 × 127 × 108 mm

Questions sur cet article

How long will the sleeve bearings last before the fans need replacing?

Each fan uses a sleeve bearing rated for 30,000 hours of continuous operation, so the four-pack should run for years under normal daily use before any bearing service is required.

What limits sustained airflow when all four fans run together?

The 3-pin connectors lock every fan to a fixed 12 V supply, capping speed at 1200 RPM ±10 % and airflow at 44.73 CFM per fan with no PWM headroom for extra demand.

How much heat and noise does the four-pack add when running 24/7?

Total power draw is 1.8 W per fan at 12 V and 0.15 A, while each unit emits 19.1 dBA, so the combined thermal load stays low and the acoustic profile remains barely audible in a typical case.

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