be quiet! Pure Wings 3 HS PWM Fan Kit, Rifle Bearing, 140mm, 3-pack, Black

The be quiet! Pure Wings 3 140mm PWM HS is engineered for effective cooling, specializing in applications that require high static pressure, such as liquid cooling radiators or dense dust filters. This multi-pack includes three 140 x 25 mm units designed to move 122.6 m³/h (72.2 CFM) of air at maximum operational speed. The High-Speed (HS) variant is calibrated to reach up to 1800 RPM, providing a static pressure delivery of 2.44 mmH₂O for penetrating restricted airflow pathways.

Each fan incorporates Pulse Width Modulation (PWM) functionality, allowing rotational speed control via a 4-pin connection, regulating performance from a standstill (0 RPM) up to the maximum setting. The Rifle Bearing technology contributes to stability and durability, providing an expected service life (MTTF) of 80,000 hours under standard operating conditions. Operating noise peaks at 30.5 dB when running at full speed. These units operate on a rated voltage of 12 V, with a low starting voltage requirement of 5 V, and draw a maximum current of 0.5 A.

• High static pressure design suitable for radiators and casings
• 140 mm fan diameter
• PWM speed control via 4-pin connector
• Rifle bearing technology promotes extended operational lifespan
• Maximum rotational speed of 1800 RPM
• Maximum acoustic output specified at 30.5 dB
• Rated for 80,000 hours Mean Time To Failure (MTTF)
• Includes mounting screws for installation