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Posted 20 hours ago

Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

£9.9£99Clearance
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About this deal

Noctua’s 120mm fans such as the NF-F12 and NF-S12A are renowned as being among the best on the market and have received more than 400 awards and recommendations from the international press. With its further improved efficiency and novel, state-of-the-art engineering, the NF-A12x25 represents another step up in performance and manufacturing. Highly optimised P/Q curve for all applications

The NF-A12x25 PWM comes with a 4-pin PWM fan connector for fully automatic speed control via your motherboard's 4-pin PWM fan headers. Please note that the fan can also be connected to 3-pin fan headers though. When connected to 3-pin fan headers, the NF-A12x25 PWM will run at full speed (unless the motherboard supports voltage based speed control). The only other problem to consider is that occasionally, components immediately adjacent to the motherboard fan header can get in the way of the larger 4-pin fan connector, physically preventing connection. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid. PLEASE NOTE: Being a 5V fan, the NF-A4x105V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers. 5V version As many devices using 5V fans feature proprietary connectors, and documentation of the pin alignment may not be available, the fan features an integrated diode for polarity protection. This way, you’re on the safe side if you accidentally connect it with reverse polarity. SSO2 bearing

FAQ

With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency. Integrated anti-vibration pads

Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems. Smooth Commutation Drive 2The latest version of Noctua’s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the fan remarkably quiet even at very close distances. Polarity protection If you're using multiple NF-A12x25 PWM fans, you can use the supplied y-cable (NA-YC1) to connect several fans to one PWM fan header. This way, your motherboard will set all the connected fans to run at the same speed. The NF-A12x25 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. Metal bearing shell

The NF-A12x25’s impeller is made from Noctua’s novel Sterrox liquid-crystal polymer (LCP) compound that features extreme tensile strength, an exceptionally low thermal expansion coefficient and damping characteristics that are ideal for reducing resonance and vibration phenomena in advanced fan-blade designs. AAO frame

The Noctua NF-A12x25 LS-PWM is a special version of the flagship model NF-A12x25 PWM and runs at a particularly low speed ex works . Thanks to aerodynamic design measures, it achieves an impressive silent cooling performance. This is made possible, among other things, by the narrow impeller gap of just 0.5 mm. Equipped with a 4-pin PWM connection , the fan speed can be regulated and is between 450 and 1,200 revolutions per minute. The fan runs extremely quietly with a maximum of 12.1 dB (A) and still offers an air throughput of up to 55.7 m³ / h (32.78 cfm) and a static pressure of 0.82 mmH2O. Even with high-grade products and strict quality control, the possibility of defects cannot be eliminated entirely. Therefore, we aim at providing the highest possible level of reliability and convenience by offering a warranty period of 6 years and direct, fast and straightforward RMA service.

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