The NF-A12x25 5V is a dedicated 5V version of Noctua s award-winning, premium-quality NF-A12x25 120mm 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-A12x25 5V is a premium choice for demanding 5V applications.Being a 5V fan, the NF-A12x25 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.5V version5V fans are used in various devices and applications. With the included USB power adaptor cable and OmniJoin adaptor set, the NF-A12x25 5V is a proven premium solution that gives you full flexibility both for replacing existing 5V fans and for new, custom applications.Next-generation performanceNoctua 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 applicationsThe NF-A12x25 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-A12x25 is a true jack-of-all-trades with excellent performance in both static pressure demanding and airflow demanding applications.Excellent on-application acousticsWhile many fans produce unpleasant, high-pitched noises when installed in typical applications such as on heatsinks or radiators, the NF-A12x25 has been carefully fine-tuned for optimal on-application acoustics. It produces a smooth, pleasant frequency profile and surprisingly low sound pressure levels (SPL) when working against back pressure.Flow Acceleration ChannelsThe 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 clearanceThe NF-A12x25 has a record tight tip clearance (distance between the blade tips and the inside of the frame) of only 0.5mm. This highly ambitious design sets a new benchmark for 120mm fans and helps the NF-A12x25 to work more efficiently against back pressure, such as on heatsinks or radiators, by reducing leak flows through the gap between impeller and frame.Metal-reinforced motor hubThe 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 compoundThe 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 frameNoctua'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 DesignNoctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.Inner Surface MicrostructuresWith 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 padsIntegrated 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 protectionAs 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 bearingThe 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 shellIn order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-A12x25 sports a CNC milled bearing shell made entirely from brass.OmniJoin Adaptor SetMany devices featuring 5V fans use proprietary fan headers, so the NF-A12x25 5V 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-A12x25 5V to proprietary fan headers!USB power adaptor cableThe 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 optionsThe 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 warrantyNoctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A12x25 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer s warranty.
| Performance | |
| Suitable location: | Computer case |
| Type: | Fan |
| Fan diameter: | 12 cm |
| Supported processor sockets: | Not supported |
| Compatible processor series: | Not supported |
| Rotational speed (max): | 1900 RPM |
| Noise level (high speed): | 21.4 dB |
| Airflow: | 96.2 m³/h |
| Maximum air pressure: | 2.07 mmH2O |
| Bearing type: | Self-Stabilising Oil-pressure Bearing (SSO) |
| Design | |
| Product colour: | Beige, Brown |
| Material: | Liquid Crystal Polymers (LCP) |
| Number of fans: | 1 fan(s) |
| Number of fan blades: | 9 |
| Fan connector: | 3-pin |
| Certification: | CE |
| Power | |
| Power supply: | 1.75 W |
| Voltage: | 5 V |
| Maximum current: | 0.35 A |
| Weight & dimensions | |
| Width: | 120 mm |
| Depth: | 25 mm |
| Height: | 120 mm |
| Cable length: | 0.3 m |
| Package width: | 150 mm |
| Package depth: | 34 mm |
| Package height: | 210 mm |
| Package weight: | 250 g |
| Technical details | |
| Sustainability certificates: | RoHS |
| Packaging content | |
| Screws included: |  |
| Other features | |
| Anti-vibration system: | |
| Mean time to failure (MTTF): | 150000 h |
| Logistics data | |
| Harmonized System (HS) code: | 84733080 |
| Master (outer) case width: | 380 mm |
| Master (outer) case length: | 360 mm |
| Master (outer) case height: | 390 mm |
| Master (outer) case gross weight: | 14.8 kg |
| Products per master (outer) case: | 36 pc(s) |
