Corsair RS140 MAX Fan Review: Top Airflow But…

The Corsair RS140 MAX is an expensive, thick fan, promising high performance and low noise output since its maximum speed is restricted at 1600 RPM. Despite the relatively low max speed, its maximum airflow exceeds 100 CFM, which I will confirm with my Longwin fan tester.

Corsair thought a 5mm thickness increase in the RS MAX series fans could improve performance while keeping the noise output low. I will confirm this (or not) through my tests. Corsair owns the same testing Longwin machine as I have, so I am sure its engineers extensively tested these fans before release to ensure their expected performance. Lastly, besides increased reliability, the fan’s magnetic dome bearing also promises low-speed output, which is not what I measured with my equipment. However, you will have to check the noise output and normalized performance data for more details on that.

Briefly, the key features of the RS120 and RS140 MAX fans are the following:

  • 30mm Thickness: An increase of 5mm over standard fan thickness allows for a larger fan blade, improving cooling performance.
  • PWM Controlled Speeds:
    a.  120mm: PWM-controlled fan speeds from 425 up to 2,000 RPM, pushing up to 72 CFM of air with 4.2mm-H2O of static pressure.
    b.  140mm: PWM-controlled fan speeds from 400 up to 1,600 RPM, pushing up to 104 CFM of air with 2.4mm-H2O of static pressure.
  • Liquid Crystal Polymer Construction: Strong and durable with excellent rigidity, reducing blade vibration and increasing performance.
  • CORSAIR AirGuide Technology: Anti-vortex vanes direct airflow at your hottest components for concentrated cooling, whether used for intake, exhaust, or mounted to a radiator or heatsink.
  • Quiet Operation with Magnetic Dome Bearing: CORSAIR’s Magnetic Dome bearing minimizes noise and reduces friction for greater longevity.
  • Zero RPM Mode Support: Supports Zero RPM PWM signals to completely eliminate fan noise at low loads.


Official Technical Specifications:
  • Model Number: RS140 MAX 140mm / RS120 MAX 140mm
  • Fan Speed Max: 1600 / 2000 RPM
  • Fan Airflow Max: 104 / 72 CFM
  • Static Pressure: 2.4 / 4.2 mm-H2O
  • Fan Noise Level: 31 / 29.5 dBA
  • Fan Bearing Type: Magnetic Levitation
  • Bearing durability: no info
  • Operating Ambient Temperature: no info
  • Fan Rated Voltage: 12 VDC
  • Fan Input Current: 0.22 / 0.20 A
  • Fan Rated Wattage: 2.64 / 2.40W
  • Daisy-Chain Capable: No
  • Cable Length: 600mm
  • Fan Connector: 4-pin (PWM)
  • LINK Compatibility: No
  • Fan Weight: 238 / 211 gr
  • Dimensions (W x H x D): 140 x 140 x 30mm
  • Price (excluding VAT): $40 / $35
  • Warranty: 5-years
Cybenetics Fans Database


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