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Single 140mm square case fan with blue LED lighting, black frame and transparent blades

Corsair

Corsair ML140 PRO LED CO-9050048-WW 140mm Blue PWM case fan

SKU CH-JKZZ-1K0VX MPN CO-9050048-WW

140 mm magnetic-levitation PWM fan spins 400 – 2,000 RPM for 20 – 97 CFM airflow at 16 – 37 dBA with blue LED lighting

  • Fan Counts1 Fan
  • Fan ControllerNo Controller
  • TypeCase Fan
  • Fan Size140mm
  • Fan Thickness25mm
  • RPM400 - 2,000 RPM

LED Blue

  • Blue
  • Red

Les versions barrées existent, mais ne sont pas disponibles ici.

  • Magnetic levitation bearing reduces noise and extends lifespan
  • Blue LED illumination adds subtle lighting to your build
  • 140 mm frame moves 20 to 97 CFM across the case
  • PWM control adjusts speed from 400 to 2000 RPM
  • Acoustic range of 16 to 37 dBA keeps operation quiet

Quiet 140 mm PWM fan for case airflow

The Corsair ML140 PRO LED is a single 140 mm case fan that uses magnetic levitation bearings to reduce friction and extend lifespan. It connects via a standard 4-pin PWM header so the motherboard can regulate speed automatically. Blue LEDs provide subtle illumination without a separate controller. It suits builders who want a balance of airflow and low noise in a standard mounting pattern.

Sustained airflow from 400 to 2,000 RPM

At the lower end the fan spins at 400 RPM and moves 20 CFM while producing 16 dBA, making it nearly inaudible during idle or light workloads. When the curve ramps to 2,000 RPM it delivers 97 CFM at 37 dBA, maintaining pressure through restrictive grilles or radiators without a sudden noise spike. The magnetic bearing keeps acoustic output consistent over long sessions because there is no physical contact to degrade.

25 mm thick frame with standard screw holes

The frame measures 140 mm by 140 mm by 25 mm, matching the common 140 mm mounting grid used on most modern cases and radiators. Four included screws secure the fan without vibration transfer. The 4-pin connector plugs directly into any PWM header, so no adapter or hub is required. Builders who need a slimmer profile or a different LED colour will need another model.

Points forts

  • Magnetic levitation bearing reduces noise and extends lifespan
  • Blue LED illumination adds subtle lighting to your build
  • 140 mm frame moves 20 to 97 CFM across the case
  • PWM control adjusts speed from 400 to 2000 RPM
  • Acoustic range of 16 to 37 dBA keeps operation quiet

Caractéristiques

BrandCorsair
SeriesML140 PRO LED
ModelCO-9050048-WW
Fan Counts1 Fan
Fan ControllerNo Controller
TypeCase Fan
Fan Size140mm
Fan Thickness25mm
RPM400 - 2,000 RPM
Air Flow20 – 97 CFM
Noise Level16 – 37 dBA
Power Connector4 Pin
LEDBlue
FeaturesMagnetic Bearing: harnesses magnetic levitation technology to provide lower noise, higher performance, and a longer lifespan
Custom Rotor Design: delivers the perfect balance between high static pressure and high airflow, operating flawlessly in the most challenging environments
Extensive PWM Control Range: A 1,600 RPM PWM control range gives you total control between silence and absolute performance
Color Customization: Replaceable corners mounted to anti-vibration rubber dampers allow you to match your fans with the rest of your build (Available separately in Red, White, and Blue)
Dimensions140mm x 140mm x 25mm
Package ContentsML140 PRO LED, 140mm Premium Magnetic Levitation PWM Fan
Fan mounting screws
Poids d’expédition0.32 kg
Dimensions du colis191 × 152 × 33 mm

Questions sur cet article

How loud does the 140mm ML140 PRO LED fan get when it spins at 2,000 RPM all day?

At maximum speed the fan reaches 37 dBA; at the 400 RPM minimum it runs at 16 dBA, so noise scales with the PWM curve you set.

My motherboard only has a 4-pin PWM header — is that enough to run this fan without an extra controller?

Yes, the fan uses a standard 4-pin PWM connector and draws power directly from the motherboard header; no separate controller is required.

Will the 140mm x 25mm frame and 4-pin PWM connector fit the same mounting holes and header as my older 140mm case fans?

The fan measures 140 mm square by 25 mm thick with standard mounting holes and a 4-pin PWM plug, so it drops into any 140 mm case slot and header.

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