Noctua NF-A14x25 G2 Chromax Black PWM Fan - 140mm

On the success of the NF-A14 and the innovations of the NF-A12x25, Noctua’s NF-A14x25 G2 is a next-generation, square-frame 140mm flagship fan crafted from Sterrox LCP. Its advanced Progressive-Bend impeller with winglets, Flow Acceleration Channels, and Centrifugal Turbulator hub—paired with a remarkably tight 0.7mm tip clearance—delivers enhanced quiet cooling performance. Designed as a true all-rounder, it excels in both low-impedance, airflow-oriented applications like case ventilation, and high-impedance scenarios requiring strong static pressure, such as on heatsinks and radiators. The pre-installed NA-AVG2-LR anti-vibration gasket ensures a secure seal on radiators, while the AAO frame can be paired with the optional NA-IS1-14 inlet spacer to improve suction acoustics and airflow in challenging intake configurations.

Award-winning NF-A14x25 G2 design
Providing a significant performance boost over the renowned first-generation NF-A14, the NF-A14x25 G2 has become a new favourite among quiet cooling enthusiasts. With rave reviews and dozens of awards from hardware media around the world, the G2 model is a proven premium choice for the highest demands.

chromax.black edition
From the impeller and fan frame to the anti-vibration pads, anti-vibration gasket, anti-vibration mounts, screws and cables, the chromax.black edition is black from head to toe, making it easy to integrate into all-black PC builds and various other environments.

Highly optimised P/Q curve for all applications
The NF-A14x25 G2’s sophisticated aerodynamic design allows for a pressure to airflow (P/Q) curve that is extremely strong in the critical mid-section. This means that the NF-A14x25 G2 is a true jack-of-all-trades with excellent performance in both static pressure and airflow demanding applications.

Centrifugal Turbulator hub
Acting as a turbulator, the new Centrifugal Turbulator hub design improves flow attachment in the hub region. At the same time, its centrifugal driving motion pushes air outwards from the hub area where efficiency is low due to the slow rotational speed towards the outer, high-efficiency zones of the blades, thereby increasing overall efficiency by optimising fluid distribution across the impeller area.

Specification
- Product Code: NF-A14x25 G2 PWM chromax.black
- Size: 140x140x25 mm
- Mounting hole spacing: 124.5x124.5 mm
- Connector & pin-configuration: 4-pin PWM
- Cable length: 20cm + 30cm NA-EC1 extension cable
- Bearing: SSO2
- Blade geometry: A-Series with Flow Acceleration Channels
- Frame technology: AAO (Advanced Acoustic Optimisation)
- Material: Sterrox LCP
- Rotational speed (±10%): 1500 RPM
- Rotational speed with L.N.A. (±10%): 1250 RPM
- Airflow: 91.5 CFM
- Airflow with L.N.A.; 74.8 CFM
- Acoustical noise: 24.8 dB(A)
- Acoustical noise with L.N.A.: 19.7 dB(A)
- Static pressure: 2.56 mm H₂O
- Static pressure with L.N.A.: 1.30 mm H₂O
- Input power (max.): 2.28 W
- Max. input current: 0.19 A
- Operating voltage: 12 V
- MTTF: 150,000 h

Accessories
- NA-RC16 Low-Noise Adaptor (L.N.A.)
- NA-YC1 4-pin PWM splitter cable
- NA-EC1 30cm extension cable
- 4x NA-AV2 anti-vibration mounts
- NA-AVG2-LR anti-vibration gasket
- 4x NA-AVP1-LR load-relief anti-vibration pads
- Fan screws