Noctua NF-A4x10 PWM 40 x 40 x 10 mm Case Fan

The Noctua NF-A4x10 PWM is a 40x10 mm fan engineered for cooling applications in compact computer systems and other space-constrained hardware. It incorporates a second-generation self-stabilizing oil-pressure (SSO2) bearing, which contributes to operational stability and long-term reliability. The fan's aerodynamic design includes Flow Acceleration Channels intended to improve airflow efficiency and reduce noise generation at the blade tips. This model is suitable for system builders who require a compact cooling solution that maintains consistent performance under variable loads.

Equipped with a 4-pin connector, the fan supports Pulse Width Modulation (PWM) for automatic speed control directly from a motherboard or compatible fan controller. Its operational range spans from 1000 to 5000 RPM, producing a maximum airflow of 5.24 CFM and an acoustic level of 19.6 dBA at full speed. The package includes silicone anti-vibration mounts to dampen operational noise and a Low-Noise Adaptor (L.N.A.) for users who prioritize quieter operation. A 4-pin Y-cable and a 30 cm extension cable are also provided for installation flexibility.

• Features a compact 40x40x10 mm frame
• Utilizes a second-generation SSO2 bearing for quiet operation
• Provides automatic speed control via a 4-pin PWM connection
• Generates up to 1.95 mmH2O of static pressure
• Constructed from PBT GF30 and silicone rubber materials
• Includes an OmniJoin adaptor set for proprietary fan headers