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Three black 120mm case fans with magnetic dome bearings, no LEDs, shown in a triple pack

Corsair

Corsair RS120 PWM 120mm case fan 3-pack CO-9050189-WW

SKU CH-1QQX-ERX2T MPN CO-9050189-WW

Three 120 mm PWM fans with magnetic dome bearings, daisy-chain connectors and AirGuide vanes deliver up to 72.8 CFM and 4.15 mm-H2O static pressure at 2,100 RPM

  • Fan Counts3 Fans
  • TypeCase Fan
  • CompatibilityCase
  • Fan Size120mm
  • Fan Thickness25mm
  • Bearing TypeMagnetic Dome

Fan Size 120mm

Model RS120 Triple Pack

  • Daisy-chain three fans through one 4-pin PWM header for simplified cabling
  • Magnetic Dome bearing cuts friction for quiet running from 10 dBA at idle
  • Zero RPM mode stops the blades completely at low load for silent operation
  • Anti-vortex AirGuide vanes focus airflow up to 72.8 CFM through radiators or heatsinks
  • 15 mm-H₂O static pressure pushes air through dense fin stacks at 2,100 RPM

Three-fan pack with daisy-chain PWM

The Corsair RS120 PWM triple pack supplies three 120mm case fans that connect in series through a single 4-pin PWM header. Each fan uses a Magnetic Dome bearing and runs from 0 to 2100 RPM, delivering between 13.3 and 72.8 CFM of airflow. The non-LED black frames suit builds that prefer a subtle appearance.

Daisy-chain wiring and AirGuide vanes

Twelve mounting screws are included so all three fans can be secured without extra hardware. The daisy-chain design reduces cable clutter by letting one motherboard header control every fan in the chain. Anti-vortex AirGuide vanes focus the airstream toward hot components, while the 4.15 mm-H2O static pressure helps push air through radiator fins or dense heatsinks.

Check header count and mounting points

Verify that your motherboard or fan controller has at least one 4-pin PWM header available for the chain. Confirm the case or radiator offers 120mm mounting holes spaced for 25mm-thick fans. Ensure your fan-control software or BIOS can send a 0 RPM signal if you want the fans to stop completely at low loads.

Points forts

  • Daisy-chain three fans through one 4-pin PWM header for simplified cabling
  • Magnetic Dome bearing cuts friction for quiet running from 10 dBA at idle
  • Zero RPM mode stops the blades completely at low load for silent operation
  • Anti-vortex AirGuide vanes focus airflow up to 72.8 CFM through radiators or heatsinks
  • 15 mm-H₂O static pressure pushes air through dense fin stacks at 2,100 RPM

Caractéristiques

BrandCorsair
ModelCO-9050189-WW
Fan Counts3 Fans
TypeCase Fan
CompatibilityCase
Fan Size120mm
Fan Thickness25mm
Bearing TypeMagnetic Dome
RPM0, 420 - 2100 RPM +/- 10%
Air Flow13.3 - 72.8 CFM
Air Pressure0.2 - 4.15 mm-H2O
Noise Level10 - 36 dBA
ColorBlack
LEDNon-LED
Dimensions120mm x 120mm x 25mm
Package Contents3x RS120 Fans
12x Mounting Screws
Poids d’expédition0.61 kg
Dimensions du colis150 × 127 × 84 mm

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Questions sur cet article

How long will the Magnetic Dome bearings last before they need replacing?

The Magnetic Dome bearing is a refinement of magnetic levitation that reduces friction for greater longevity, and the fan supports a Zero RPM mode at low loads to further limit bearing wear.

What is the maximum static pressure the fans can sustain when pushing air through a radiator?

The fans deliver up to 4.15 mm-H2O static pressure at the top speed of 2,100 RPM, which is the limit for sustained airflow through dense fins.

How loud are the three fans together when running at full speed all day?

Each fan reaches 36 dBA at 2,100 RPM, so the triple pack at full speed will be audible but stays within that single-fan noise rating per unit.

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