Noctua NF-A14x25 G2 LS-PWM Fan, SSO2 Bearing, 140mm, Brown

This 140mm cooling fan is engineered for system builds that require low acoustic output and highly efficient passive cooling capability. The fan operates with a maximum rotational speed limited to 800 RPM, designed specifically for quiet environments and semi-passive operation, where the fan can cease spinning below certain thermal thresholds. It delivers a maximum airflow of 81.6 m³/h and generates a static pressure of 0.71 mmH2O, making the unit suitable for both general chassis ventilation and less restrictive radiator deployment.

The fan utilizes advanced construction materials, including LCP GF30 for the impeller, which contributes to increased rigidity and optimized blade geometry stability. Durability is maintained via the proprietary SSO2 bearing system, rated for a Mean Time To Failure (MTTF) of 150,000 hours under standard operating conditions. Connectivity is handled by a standard 4-pin connector, providing full Pulse Width Modulation (PWM) support for automatic speed control. At its maximum 800 RPM, the operational noise output registers at 11.4 dB.

• Fan diameter of 140 millimeters
• Maximum rotational speed restricted to 800 RPM
• Zero minimum RPM functionality supports semi-passive cooling setups
• Maximum noise level output of 11.4 decibels
• SSO2 bearing technology for sustained reliability
• Compatible with 4-pin Pulse Width Modulation (PWM) control
• Rated Mean Time To Failure (MTTF) of 150,000 hours
• Operates at a standard 12 volt rated voltage
• Includes Low-Noise Adapter (L.N.A.) and anti-vibration mounting accessories