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Noctua NF-A12x25 G2 PWM, Premium-Quality Quiet 120mm PC Fan (Brown)
- Next-gen 120x25mm design for unprecedented quiet cooling performance in both high airflow and high static pressure applications: ideal as a PC case fan, on CPU coolers and water cooling radiators!
- State-of-the-art engineering (Progressive Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance)
- 4-pin PWM version for automatic speed control via 4-pin PWM motherboard fan headers, 360-1800rpm speed range (near-silent at idle, powerful under load), fan stops at 0% PWM (semi-passive option)
- Includes anti-vibration mounts, 12cm anti-vibration gasket for tighter seal on radiators, fan screws, Low-Noise Adaptor, extension cable and splitter cable for running two PWM fans on one Header
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, over voltage and over current (short-circuits)
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Overview
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The NF-A12x25 G2 is the second-generation, further improved successor to the groundbreaking NF-A12x25 and 120mm sister model to the award-winning 140mm
NF-A14x25 G2: Like its much-acclaimed predecessor, it is made from Sterrox LCP and features an extremely tight tip-clearance of only 0.5 mm. At the same time, its further optimised Progressive Bend impeller with winglets, Flow Acceleration Channels and the new Centrifugal Turbulator Hub enable the G2 version to surpass the original NF-A12x25s performance, making it Noctuas undisputed new flagship in the 120mm range.
Just like its predecessor and the 140mm version, the NF-A12x25 G2 is a true all-rounder that yields superb results in all types of usage, regardless of whether its 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.
For application-specific optimisation, the NF-A12x25 G2s AAO (Advanced Acoustic Optimisation) frame can be combined with the included NA-AVG1 anti-vibration gasket for a tighter seal on radiators or the optional NA-IS1-12 inlet side spacer frame, which can help to achieve superior suction acoustics and flow rates in challenging pull" configurations.
The 4-pin PWM version supports fully automatic speed control via PWM fan headers and comes with a Low-Noise Adaptor to reduce the maximum speed from 1800 to 1500rpm. Its ultra-low-loss etaPERF motor with Smooth Commutation Drive 2 technology doesnt only provide unprecedented energy efficiency and running smoothness, but thanks to the new SupraTorque feature, it can also leverage extra torque headroom to keep the fan at its desired speed when working against back pressure, thereby ensuring even better performance on heatsinks and radiators.
Topped off with Noctuas reference-class SSO2 bearing, a rich bundle of accessories and 6-year manufacturers warranty, the NF-A12x25 G2 is a premium-quality product through and through. 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.
NF-A14x25 G2: Like its much-acclaimed predecessor, it is made from Sterrox LCP and features an extremely tight tip-clearance of only 0.5 mm. At the same time, its further optimised Progressive Bend impeller with winglets, Flow Acceleration Channels and the new Centrifugal Turbulator Hub enable the G2 version to surpass the original NF-A12x25s performance, making it Noctuas undisputed new flagship in the 120mm range.
Just like its predecessor and the 140mm version, the NF-A12x25 G2 is a true all-rounder that yields superb results in all types of usage, regardless of whether its 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.
For application-specific optimisation, the NF-A12x25 G2s AAO (Advanced Acoustic Optimisation) frame can be combined with the included NA-AVG1 anti-vibration gasket for a tighter seal on radiators or the optional NA-IS1-12 inlet side spacer frame, which can help to achieve superior suction acoustics and flow rates in challenging pull" configurations.
The 4-pin PWM version supports fully automatic speed control via PWM fan headers and comes with a Low-Noise Adaptor to reduce the maximum speed from 1800 to 1500rpm. Its ultra-low-loss etaPERF motor with Smooth Commutation Drive 2 technology doesnt only provide unprecedented energy efficiency and running smoothness, but thanks to the new SupraTorque feature, it can also leverage extra torque headroom to keep the fan at its desired speed when working against back pressure, thereby ensuring even better performance on heatsinks and radiators.
Topped off with Noctuas reference-class SSO2 bearing, a rich bundle of accessories and 6-year manufacturers warranty, the NF-A12x25 G2 is a premium-quality product through and through. 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.
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Warranty
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- Return for refund within: 30 days
- Return for replacement within: 90 days
- This item is covered by Noctua Cooling Solutions Return Policy
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The Noctua NF-A12x25 G2 PWM is a premium brown 120 mm PC fan for builders who want one fan for case airflow, CPU coolers, or water-cooling radiators, with PWM speed control from 360 to 1800 RPM.
Recommended For
- PC builders replacing a 120 mm AIO or custom-loop radiator fan who want strong cooling at a given noise level; independent testing found the G2 improved on the previous model in radiator tests.
- Builders tuning a quiet desktop around sustained CPU or GPU workloads who can set a PWM fan curve; reviewers found it performs well at reduced speeds, while maximum-speed operation is more audible.
- Small-form-factor PC builders who need a standard 120 mm fan for case exhaust or a compatible heatsink and want tested thermal and noise performance in a compact build.
- PC builders choosing a premium 120 mm fan for more than one role—case airflow, CPU cooling, or radiator use—who value PWM control and included mounting accessories.
Real-World Use Scenarios
- When replacing or adding fans on a 120 mm liquid-cooling radiator, the user wants to move air through the radiator during CPU-heavy work; testing shows the fan can support radiator cooling, with PWM control letting the user balance temperatures and noise.
- When fitting a 120 mm fan to a compatible tower CPU cooler, the user wants to keep processor temperatures in check during sustained workloads; a controlled review test found the G2 cooled slightly better than the previous model on the tested air cooler, though results depend on the cooler and system.
- When adding intake or exhaust airflow to a PC case, the user wants to help carry heat away from components during gaming or other combined CPU-and-GPU loads; testing used the fan in both front intake and rear exhaust positions, with the outcome depending on the case’s airflow layout.
- When tuning a quieter everyday PC, the user wants fans to run more slowly at light loads and ramp up as temperatures rise; PWM control supports that adjustable behavior, so the system can prioritize lower noise at idle and more cooling when needed.