Noctua NF-A14x25 G2 LS PWM 140mm Next Generation Premium Quiet Fan
140mm Noctua NF-A14x25 G2 LS PWM Fan, 9 Blade, Quiet Airflow Fan, 800rpm, SSO2 Bearing, Anti-Vibration Pads, 4-pin PWM
Email me when the availability or price changes
Finance this product
- Spend over £390.00 and Buy Now, Pay Later or spread the cost of your finance over 24-48 months with a 10% deposit.
- SCANPROTECT Protect against installation damage for 28 days.
Next Generation Performance
Building 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.
The 4-pin LS-PWM version is a low-speed, PWM-enabled model ideal for semi-passive or ultra-quiet systems requiring precise speed control and near-silent operation. Its etaPERF motor with Smooth Commutation Drive 2 technology offers outstanding energy efficiency and smooth running, meeting the demands of even the most noise-sensitive users. Combined with Noctua's premium SSO2 bearing and an extensive accessory package, the NF-A14x25 G2 sets a new benchmark in cooling performance, making it a top-tier choice for discerning enthusiasts and professionals alike.
Centrifugal Turbulator Hub
Acting as a turbulator, the new Centrifugal Turbulator hub design improves flow attachment in the hub region. At the same time, it's 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.
SSO2 Bearing
The NF-A14x25 G2 features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability.
Ultra-Tight Tip Clearance
The NF-A14x25 G2 has a record tight tip clearance (distance between the blade tips and the inside of the frame) of only 0.7mm. This highly ambitious design sets a new benchmark for 140mm fans and helps the NF-A14x25 G2 to work more efficiently against back pressure, such as on heatsinks or radiators, by reducing leak flows through the gap between impeller and frame.
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.
Features
• Centrifugal Turbulator hub design.
• Time-tested SSO bearings.
• Ultra-tight tip clearance of 0.7mm.
• Highly optimised P/Q curve for all applications.
• 800 RPM, 48.0 CFM, 11.4 dB(A).
