be quiet! Pure Wings 3 PWM Fan, Rifle Bearing, 140mm, Black

This 140 mm PC cooling fan is engineered for efficient air movement within computing enclosures, suitable for installation both as a general case fan and directly onto liquid cooling radiators. The unit features Pulse Width Modulation (PWM) support, enabling the system to dynamically adjust rotational speeds across a range extending up to 1200 RPM, allowing for thermal management based on current load requirements. When operating at peak velocity, the fan produces a maximum airflow of 57.4 CFM alongside 0.96 mmH₂O of static pressure, balancing cooling capability across varied installation environments.

The design incorporates a rifle bearing system, which contributes to increased operational lifespan, specified with a Mean Time To Failure (MTTF) rating of 80,000 hours. Acoustically, the fan maintains a controlled noise profile, generating a maximum sound level of 21.9 dB. Compatibility is ensured by the standard 140 x 140 x 25 mm dimensions and a conventional 4-pin connector, operating nominally at 12V. Four screws are included for direct mounting.

• 140 mm fan diameter with a 25 mm profile
• Rotational speed range up to 1200 RPM
• Maximum airflow capacity of 57.4 CFM
• Static pressure rating of 0.96 mmH₂O
• Maximum acoustic output of 21.9 dB
• Integrated 4-pin PWM functionality for speed modulation
• Rifle bearing design for prolonged operational life
• Rated Mean Time To Failure (MTTF) of 80,000 hours
• Suitable for chassis and radiator mounting configurations