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

FREE Shipping

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

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

RRP: £99
Price: £9.9
£9.9 FREE Shipping

In stock

We accept the following payment methods


Many devices featuring 5V fans use proprietary fan headers, so the NF-A12x255V comes with Noctua’s OmniJoin adaptor set. Just cut the original fan’s cable, fix it to the adaptor using the supplied 3M Scotchlok connectors and you can plug the NF-A12x255V to proprietary fan headers! USB power adaptor cable 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 Noctua’s AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua’s proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan’s performance/noise efficiency. Stepped Inlet Design 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 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. The fan includes a USB power adaptor cable that allows it to run on power banks, devices with USB host ports or USB power supplies such as those used for smartphones, giving you near endless possibilities for using the fan in your home, in your car or wherever a need for cooling occurs! Extensive cabling options The NF-A12x25 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise. Ultra-tight tip clearance

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

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 2PLEASE 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 fans are used in various devices and applications. With the included USB power adaptor cable and OmniJoin adaptor set, the NF-A12x255V is a proven premium solution that gives you full flexibility both for replacing existing 5V fans and for new, custom applications. Next-generation performance Vibrations can be reduced with anti-vibration pads and Noctua provides anti-vibration sealing lips for mounting on radiators . A low-noise adapter (LNA) is included as a further accessory , which reduces the maximum speed to 900 rpm. If two fans are to be operated on one connection, this is easily possible thanks to a 4-pin Y-cable . A practical 30 cm long cable extension for convenient cable management completes the accessories. 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 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).

In addition, the hub area of the fan is reinforced with metal to improve stability. The impeller of the NF-A12x25 LS-PWM is on the suction side with so-called flow acceleration channelsfitted. These accelerate the air in the outdoor areas, so that efficiency is improved and the volume is reduced. The air flow is further optimized by the stepped inlet area and the microstructure in the inner area of the frame. The fan’s short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved. 6-year manufacturer’s warranty


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 centrepiece of the NF-A12x25’s motor hub is made entirely from steel and the axle mount is reinforced with an additional brass structure. In combination, both measures ensure ultimate precision and increased stability in the critical hub area. Sterrox liquid-crystal polymer compound The 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 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. The NF-A12x255V is a dedicated 5V version of Noctua’s award-winning, premium-quality NF-A12x25120mm fan. Featuring an AAO (Advanced Acoustic Optimisation) standard frame and sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A12x25 is renowned for its superior performance and outstanding quietness of operation. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing guarantee superb running smoothness and excellent long-term stability. Topped off with the included USB power adaptor cable, OmniJoin adaptor set and 6-year manufacturer’s warranty, the NF-A12x255V is a premium choice for demanding 5V applications.

  • Fruugo ID: 258392218-563234582
  • EAN: 764486781913
  • Sold by: Fruugo

Delivery & Returns


Address: UK
All products: Visit Fruugo Shop