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Noctua NF-A12x25 G2 LS-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)
- Ultra-quiet 4-pin low-speed PWM version with 1100rpm maximum speed, ideal for semi-passive setups (fan stops at 0% PWM) or ultra-low-noise applications that require PWM control
- 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
Specs
Reviews
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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 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. Its super-low-loss etaPERF motor with Smooth Commutation Drive 2 technology combines unprecedented energy efficiency with a superb running smoothness that is guaranteed to satisfy even the most noise-sensitive users.
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 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. Its super-low-loss etaPERF motor with Smooth Commutation Drive 2 technology combines unprecedented energy efficiency with a superb running smoothness that is guaranteed to satisfy even the most noise-sensitive users.
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.
Warranty & Returns
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Warranty
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Return Policies
- 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 LS-PWM is a quiet 120mm PWM PC fan for builders who want low-noise cooling in a case, on a CPU cooler, or on a water-cooling radiator; its maximum speed is 1100 RPM, and it can stop at 0% PWM.
Recommended For
- Quiet-PC builders who want a 120 mm case fan with a hard 1,100 rpm ceiling for low-noise airflow in a system that does not need high fan speeds.
- Semi-passive PC builders who want a fan that can stop at 0% PWM and start automatically when temperatures rise, while keeping its maximum speed limited.
- Noise-conscious users replacing a 120 mm case or cooler fan who prioritize a low-speed operating profile over the option to ramp up for extra cooling.
- Builders who want a 120 mm fan for a low-demand radiator setup and value the included anti-vibration radiator gasket, provided their cooling needs fit the fan’s 1,100 rpm maximum.
Real-World Use Scenarios
- In a quiet desktop build, use it as a 120 mm case intake or exhaust fan to maintain airflow without a high fan-speed ceiling; a review found the LS version suitable when keeping case-fan noise low is the priority.
- For a semi-passive PC, set the fan curve to stop the fan during cool, light-use periods and restart it as temperatures rise; this suits users who want less background airflow noise at idle.
- On a 120 mm liquid-cooling radiator, it can suit a quiet-focused system where the cooling load stays within range; its low-speed design favors restrained noise over the extra fan speed available from the standard PWM version.
- As a case-fan replacement in a 120 mm mount, use PWM control to keep airflow matched to everyday workloads; the low-speed version helps avoid a fan ramping to the higher speeds available on faster models.
- For a CPU air cooler in a low-noise build, it can provide cooling at a modest fan speed, but users with sustained high CPU loads should check temperatures and fan-curve behavior rather than assume the low-speed model will match a faster cooler fan.