Fan MasterFan A140

The MasterFan A140 from Cooler Master redefines large-format airflow by pairing a 140 mm frame with a Loop Dynamic Bearing that outlasts standard sleeve or ball designs. Instead of simply scaling up a 120 mm fan, Cooler Master tuned the seven-blade impeller to deliver up to 83.1 CFM while keeping noise as low as 6 dBA at idle. The result is a fan that moves serious air through restrictive case panels and CPU coolers without turning your build into a wind tunnel.

Highlights

• 140 mm PWM fan with a wide 650–1800 RPM range for automatic speed control
• Loop Dynamic Bearing (LDB) rated for 490,000 hours MTTF
• High static pressure up to 1.63 mmH2O for radiators and dense mesh
• Seven PBT blades engineered for balanced airflow and low turbulence
• 4-pin PWM connector for motherboard-based fan curve management
• Includes four self-tapping screws for immediate installation

In daily use

Mount it as a front intake, top exhaust, or on a 280 mm radiator. At low loads the fan spins down to 650 RPM, producing just 6 dBA—quieter than a whisper. When temperatures climb, the PWM signal ramps it smoothly to 1800 RPM, pushing 83.1 CFM through filters and grilles. The black PBT frame and blades blend into any build, and the standard 140 mm hole spacing fits most cases without adapters.

Full specifications

• Fan size: 140 mm
• Speed: 650–1800 RPM (PWM)
• Airflow: 53.4–83.1 CFM
• Static pressure: 0.47–1.63 mmH2O
• Noise level: 6–30 dBA
• Bearing: Loop Dynamic Bearing (LDB)
• Connector: 4-pin PWM
• Rated voltage: 12V DC
• Rated current: 0.2 A
• Power consumption: 2.4 W
• MTTF: 490,000 hours
• Material: PBT plastic
• Number of blades: 7
• Included accessories: 4 fan screws

Final note

For builders who want high airflow without the noise penalty, the MasterFan A140 delivers a rare combination of pressure, longevity, and silent operation in a single 140 mm package.