Corsair

Corsair CO-9050048-WW ML140 Pro Blue LED Cooling Fan

4.7 (11057 reviews)

Corsair ML140 Pro delivers whisper-quiet 140mm cooling with magnetic levitation bearing and vivid blue LED lighting.

$35.17*
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*Price sourced from Amazon.com. Last updated:Jul 28, 2026.Price and availability are subject to change.

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Overview

The Corsair ML140 Pro Blue LED is a 140mm cooling fan built around Corsair's magnetic levitation bearing technology. Unlike conventional sleeve or ball bearings that rely on physical contact, the magnetic levitation design suspends the fan rotor using opposing magnets, virtually eliminating mechanical friction. The result is a fan that runs quieter, maintains consistent performance over time, and benefits from a longer operational lifespan. With airflow rated at 97 CFM and a 4-pin PWM connector providing a 1,600 RPM control range, the ML140 Pro gives builders precise control over the balance between silent operation and peak thermal performance.

Aesthetically, the fan features frosted translucent blades illuminated by four blue LEDs, producing a clean, diffused glow. The corner mounting points include anti-vibration rubber dampers to reduce noise transmission to the chassis, and these corners are replaceable with separately sold color kits in red, white, or blue. The custom rotor blade design is engineered to deliver both high static pressure and high airflow, making the ML140 Pro suitable for open-air case intake and exhaust positions as well as radiator-mounted cooling configurations. Note that this listing is for a used unit, so buyers should inspect condition upon arrival.

Key Features

Magnetic Bearing: harnesses magnetic levitation technology to provide lower noise, higher performance, and a longer lifespan. Air flow - 97 CFM. Noise level - 35.0 decibels

Custom Rotor Design: delivers the perfect balance between high static pressure and high airflow, operating flawlessly in the most challenging environments

Extensive Control Range: A 1,600 RPM 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)

Radiating LED Lighting: Frosted translucent blades and four vivid LEDs for a striking look

Specifications

Fan Size
140mm
Fan Speed
Up to 2000 RPM
Airflow
97 CFM
Noise Level
35–37 dB(A)
Bearing Type
Magnetic Levitation
Connector
4-pin PWM
LED Color
Blue
Condition
Used
Model Number
CO-9050048-WW

Frequently Asked Questions

It uses Corsair's magnetic levitation bearing technology, which suspends the fan rotor magnetically. This reduces friction, lowers noise, and extends the fan's operational lifespan compared to traditional sleeve or ball bearings.
Yes, it uses a 4-pin PWM connector, giving you control over fan speed across its full RPM range for fine-tuning the balance between cooling performance and noise.
The blue LEDs are fixed and cannot be changed. However, the corner pieces are replaceable, and Corsair sells separate corner kits in red, white, and blue so you can match your build's color scheme.
The fan delivers up to 97 CFM of airflow. Noise is rated at approximately 35–37 dB(A) at maximum speed.
Yes, the custom rotor design is engineered to balance high static pressure and high airflow, making it suitable for both case ventilation and radiator cooling.