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Succeeding the award-winning NF-A14 and building on the technological innovations of the ground-breaking NF-A12x25, the NF-A14x25 G2 is Noctua's next-generation square-frame 140mm flagship model: Made from Sterrox LCP, its highly optimised Progressive-Bend impeller with winglets, Flow Acceleration Channels and Centrifugal Turbulator hub combined with a tip-clearance of only 0.7mm allow the NF-A14x25 G2 to further improve its predecessors renowned quiet cooling performance. Like the NF-A14 and NF-A12x25, it is a true all-rounder that yields superb results in all types of usage, regardless of whether it's in low-impedance, airflow-oriented applications such as case cooling, or high-impedance, static pressure demanding scenarios such as on heatsinks and water cooling radiators. Its superior performance, comprehensive feature set, cutting-edge construction and state-of-the-art materials set a new standard within Noctuas portfolio and make it an elite choice for the most discerning demands.
Progressive-Bend impeller
The NF-A14x25 G2 features a unique Progressive-Bend impeller with Flow Acceleration Channels and winglets. Its nine blades are swept backwards close to the hub and progressively bent forward further out. Working in tandem with the Centrifugal Turbulator hub, this design not only helps to push more air towards the outer blade areas where efficiency is higher but also assures maximum lift and near uniform loading across the entire blade span.
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 is 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.
*In chassis with more than 165mm CPU cooler clearance, the front fan can be moved upwards to make room for memory modules taller than 32mm.
Scope of delivery
- 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
| Products | |||||
|---|---|---|---|---|---|
| Connector | 4-pin PWM | 4-pin PWM | 4-pin PWM | 4-pin PWM | 4-pin PWM |
| Voltage | 12 V | 12 V | 12 V | 12 V | 12 V |
| RPM | 1500 RPM | 800 RPM | 1500 RPM | 1500 RPM | 1500 RPM |
| RPM with L.N.A. | 1250 RPM | 600 RPM | 1250 RPM | 1250 RPM | 1250 RPM |
| Acoustical Noise | 24.8 dB(A) | 11.4 dB(A) | 24.8 dB(A) | 24.8 dB(A) | 24.8 dB(A) |
| Acoustical Noise with L.N.A. | 19.7 dB(A) | 8.6 dB(A) | 19.7 dB(A) | 19.7 dB(A) | 19.7 dB(A) |
| Size | 140x140x25 mm | 140x140x25 mm | 140x140x25 mm | 140x140x25 mm | 140x140x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige |
| Quantity | x1 | x1 | x1 | x2 | x2 |
