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Noctua NF-A12x25 PWM Chromax - 120mm x 25mm 2000RPM Cooling Fan
$
72
Having received more than 100 awards and recommendations from international hardware websites and magazines, Noctua's flagship model NF-A12x25 has established itself as a true deluxe choice when it comes to premium-quality quiet 120mm fans. Various state-of-the-art technologies and a record tight tip clearance of only 0.5mm, which is made possible by using the novel Sterrox liquid-crystal polymer material, allow it to achieve superb results in all types of usage: Whether it's in low-impedance, airflow-oriented applications such as case cooling, or high-impedance, pressure-demanding scenarios such as on heatsinks and watercooling radiators, the NF-A12x25 is a proven winner. The 4-pin LS-PWM version is a low-speed, PWM-enabled variant that is ideal for semi-passive setups or ultra-low-noise applications that require near-silent acoustics and PWM based speed control.
Key Selling Points
- Next-generation performance
- Award-winning NF-A12x25 design
- Highly optimized P/Q curve for all applications
- Excellent on-application acoustics
- Flow Acceleration Channels
- Metal-reinforced motor hub
- Sterrox liquid-crystal polymer compound
- AAO frame
- Stepped Inlet Design
- Inner Surface Microstructures
- Integrated anti-vibration pads
- Anti-vibration gasket for watercooling radiators
- SSO2 bearing
- Metal bearing shell
- Ultra-quiet low-speed version with PWM
- Custom-designed PWM IC with SCD
- Stops at 0% PWM
- Smooth Commutation Drive 2
- Optional adaptor for 140mm watercooling radiators
Product Features
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.
First introduced in 2018, the NF-A12x25 has taken the hearts of quiet cooling enthusiasts around the world by storm and reshaped the common perception of what 120mm fans can do. With more than 100 awards and recommendations from the international press, it's widely considered to be the best 120mm fan on the market.
The 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.
While 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.
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.
The centerpiece 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.
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.
Noctua's AAO (Advanced Acoustic Optimization) 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.
Noctua'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.
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 made from extra-soft silicone minimize the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.
The NF-A12x25 includes a silicone gasket that can be used when installing the fan on watercooling radiators or other applications that benefit from a tighter seal with the fan. The gasket helps to damp minute vibrations and to reduce air loss between the fan and the radiator for optimal cooling performance.
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 stabilization, precision and durability.
In 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.
Producing only 12.1 dB(A) at its 1200rpm maximum speed and 7.6 dB(A) with the included Low-Noise Adaptor, the LS-PWM version is ideal for serious silent-enthusiasts: An ultra-quiet low-speed fan that supports PWM control for advanced acoustic fine-tuning!
Supporting fully automatic PWM speed control, the fan uses Noctua's custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.
When the fan is set to 0% PWM duty cycle by the motherboard or PWM fan controller, it will stop. This makes it ideal for creating setups with semi-passive cooling that automatically turn the fans off and thus run completely silent at idle if thermals allow.
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.
Thanks to its superior efficiency, the NF-A12x25 can outperform many 140mm fans. Combined with the optional NA-FMA1 adaptor frame that allows it to be installed on 140mm radiators, the NF-A12x25 is a great upgrade for 140mm-based watercoolers.
Attributes
Main Specifications
Color
BlackDimensions (WxDxH)
12 cm x 12 cm x 2.5 cmFan Bearing
SSO2 bearingFan Diameter
120 mmFan Height
25 mmFeatures
Pulse-width modulation (PWM) support, Advanced Acoustic Optimisation (AAO), flow acceleration channels, Smooth Commutation Drive 2 (SCD2) technology, Stepped Inlet Design, Inner Surface Microstructures, Metal Bearing Shell, Custom-designed PWM IC with SCDManufacturer Warranty
6-year warrantyNoise Level
22.6 dBAPackage Content
Extension cable (30 cm), fan screws, 4 x NA-AVP1 chromax.gray anti-vibration pads, 4 x NA-AVP1 chromax.black anti-vibration pads, 4 x NA-AVP1 chromax.blue anti-vibration pads, 4 x NA-AVP1 chromax.green anti-vibration pads, 4 x NA-AVP1 chromax.red anti-vibPower Connector
4-pin fan connectorProduct Description
Noctua NF-A12x25 - chromax.black.swap edition - case fanProduct Material
Sterrox liquid-crystal polymer (LCP)Product Type
Case fanRated Voltage
12 VRotation Speed
450-2000 rpmNoctua NF-A12x25 PWM Chromax - 120mm x 25mm 2000RPM Cooling Fan
NF-A12x25-PWM-CH-BK-S
NF-A12x25-PWM
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WA :
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ETA 2/5/2024
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Wangara
ETA 2/5/2024
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PLE Code
PLE-650398Manufacturer
NoctuaBoxed Weight
0.36Model Number
NF-A12x25-PWM-CH-BK-SWarranty
3 Year Manufacturer Standard Return to Base
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