Noctua NF-A20 5V PWM fan - 200mm [NF-A20 5V PWM]

The NF-A12X25 5V PWM is a premium 120mm silent fan with AAO (Advanced Acoustic Optimization) square frame. Due to the 5V specification, it is not suitable for operation on mainboard headers. Thanks to a 4-pin PWM connector, the fan speed can be regulated and is between 450 and 1,900 revolutions per minute. However, the fan runs pleasantly quietly at a maximum of 21.4 dB(A) and still offers an air flow rate of up to 96.2 m³/h and a static pressure of 2.07 mmH2O.

The features of the Noctua NF-A12X25 5V PWM fan at a glance:
- SSO2 bearings for high performance, quiet operation and long durability
- Pressure-optimized rotor blades with high static pressure and high flow rate
- 5V version incl. USB and OmniJoin adapter cable for maximum compatibility
- Flow Acceleration Channels for a smoother running noise
- 1,900 revolutions per minute at 96.2 m³/h & 21.4 dB(A)
- PWM control between 450 and 1,900 RPM
- Convincing quality with a 6-year manufacturer's guarantee

The Noctua NF-A12X25 5V PWM in detail
The PWM version is equipped with Noctua's specially designed NE-FD3 IC for fully automatic speed control. Its performance-oriented maximum speed and comprehensive speed control options make the NF-A20 5V PWM a top-of-the-line solution for users who want to achieve the perfect balance between excellent cooling performance and superb smoothness.

The impeller of the NF-A20 5V PWM is equipped with so-called Flow Acceleration Channels on the suction side . By accelerating airflow in the critical outer regions of the fan blades, suction-side vortex shedding is reduced, resulting in higher efficiency and lower turbulence-related noise emissions.

Noctua's AAO (Advandced Acoustic Optimization) frames have integrated vibration buffers as well as a stepped inlet area (Stepped Inlet Design) and an inner microstructure (Inner Surface Microstructures), which enable even better performance/noise efficiency. The anti-vibration pads made of extra-soft silicone reduce the transmission of the smallest vibrations and are also compatible with all standard screws and commercially available mounting systems or fan clips used with CPU coolers.

The NF-A20 features the further optimized second generation of Noctua's proven SSO bearing systemfitted. With SSO2, the rear magnet sits closer to the fan axis for even better stabilization, resulting in further improved precision and durability. Noctua's fans are known for their impeccable quality and outstanding durability. Like all Noctua fans, the NF-A20 has an MTBF specification of over 150,000 hours and comes with a full 6-year manufacturer's guarantee.

Due to the 5V specification, the fan is not suitable for operation on mainboard headers.

Technical details:
- Dimensions: 200 x 200 x 30 mm (W x H x D)
- Material: Plastic
- Speed: 350 - 800 rpm
- Max. Flow rate: 146.9 m³ / h
- Max. Static pressure: 1.08 mm H2O
- Max. Volume: 18.1 dB (A)
- Voltage: 5V
- Power consumption: 0.85 W, 0.17 A.
- Connection: 4-pin PWM
- Life expectancy: 150,000 h
- Manufacturer's warranty: 6 years
Equipment:
- USB power adapter cable
- OmniJoin Adapter Set
- 30 cm cable extension
- 4x fan screws
- 4x vibration inhibitor