Noctua NF-A20 PWM 200mm Fan
The Noctua NF-A20 PWM 200mm Fan is a premium, large-format cooling solution engineered for exceptional airflow and ultra-quiet operation. Its advanced aerodynamic design and PWM control make it ideal for case cooling, providing superior performance while maintaining minimal noise levels.
Massive Airflow and Whisper-Quiet Operation:
Large 200mm Size for High Airflow:
The Noctua NF-A20 PWM features a large 200mm size, allowing it to move a significant volume of air (146.9 m³/h) at lower rotational speeds. This makes it highly effective for cooling large PC cases and components, ensuring optimal thermal performance. Consequently, it provides excellent cooling while maintaining a quiet environment.
Advanced Acoustic Optimisation (AAO) Frame:
Noctua’s proprietary AAO (Advanced Acoustic Optimisation) frame technology incorporates Stepped Inlet Design and Inner Surface Microstructures. These features work together to reduce noise and improve airflow efficiency. The fan’s A-Series blade geometry with Flow Acceleration Channels further refines airflow, ensuring quiet yet powerful cooling performance, with noise levels as low as 18.1 dB(A).
PWM Control for Precise Speed Adjustment:
The NF-A20 PWM supports 4-pin PWM control, allowing for precise and automatic speed adjustment based on your system’s temperature. This ensures optimal balance between cooling performance and noise levels. With a minimum rotational speed of 350 RPM at 20% PWM, it can operate virtually silently when cooling demands are low. Furthermore, the included Low-Noise Adaptor (L.N.A.) can further reduce the maximum speed to 550 RPM for even quieter operation.
Built for Durability and Versatile Installation:
SSO2 Bearing for Exceptional Lifespan:
The fan utilizes Noctua’s renowned SSO2 bearing, an optimized second-generation self-stabilizing oil-pressure bearing. This advanced bearing system ensures exceptional long-term stability and a lifespan of over 150,000 hours. Therefore, the NF-A20 PWM provides reliable and consistent performance for many years, backed by a 6-year warranty.
Flexible Mounting Hole Spacing:
The NF-A20 PWM offers versatile mounting options with spacing for 154x154mm, 110x180mm, and 170x170mm. This flexibility ensures compatibility with a wide range of PC cases and mounting points. Consequently, it simplifies installation in various system configurations, making it a highly adaptable cooling solution.
Comprehensive Scope of Delivery:
The NF-A20 PWM includes a comprehensive set of accessories for easy installation and versatile use. This includes a Low-Noise Adaptor (L.N.A.), a 4-pin y-cable, a 30cm extension cable, NA-AV3 and NA-AV4 anti-vibration mounts, and fan screws. This ensures you have everything needed for a hassle-free setup and optimized performance.
Specifications:
Detailed Technical Specifications:
- Size: 200x200x30 mm
- Mounting Hole Spacing: 154×154, 110×180, 170×170 mm
- Connector: 4-pin PWM
- Bearing: SSO2
- Blade Geometry: A-Series with Flow Acceleration Channels
- Frame Technology: AAO (Advanced Acoustic Optimisation)
- Rotational Speed (Max): 800 RPM
- Rotational Speed (with L.N.A.): 550 RPM
- Min. Rotational Speed @ 20% PWM: 350 RPM
- Airflow (Max): 146.9 m³/h
- Airflow (with L.N.A.): 100.8 m³/h
- Acoustical Noise (Max): 18.1 dB(A)
- Acoustical Noise (with L.N.A.): 10.7 dB(A)
- Static Pressure (Max): 1.08 mm H₂O
- Static Pressure (with L.N.A.): 0.51 mm H₂O
- Input Power (Typical): 0.82 W
- Operating Voltage: 12 V
- Voltage PWM Signal: 5 V
- MTTF: > 150,000 hours
- Warranty: 6 years
- Scope of Delivery: L.N.A., 4-pin y-cable, 30cm extension cable, NA-AV3 anti-vibration mounts, NA-AV4 anti-vibration mounts, Fan screws
Explore more PC Cooling Fans or visit the Official Noctua NF-A20 PWM Product Page for detailed information.


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