Product Comparison: Noctua NF-S12A PWM vs Noctua NF-S12B redux-1200 PWM

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General Specifications
NF-S12B redux-1200 PWM
About the Product
The NF-S12A marks the third generation of Noctua’s signature S12 series quiet case fans. Featuring a further refined blade design with Anti-Stall Knobs that works in tandem with the new AAO frame, the NF-S12A improves the airflow/noise efficiency of its renowned predecessor by up to 8%.
The 1200rpm PWM version features Noctua’s proprietary NE-FD1 for automatic speed control, which allows to strike a perfect balance between high cooling capacity and low noise operation in each given situation.
Key Specs
Fan Bearing Technology
SSO2 Bearing
SSO Bearing
Max. Airflow
63.27 CFM
59.21 CFM
1200 RPM
1200 RPM
What customers say about "Key Specs"
Noctua NF-S12A PWM Premium Quiet Fan
  • The amount of airflow from this particular model seems good.
  • There practically silent and provide great airflow in a low-medium static pressure setting.
  • This fan is perfect for use as an exhaust fan because of its low noise and high airflow.
  • This particular fan is airflow-optimized, as opposed to NF-F12s, which are pressure-optimized.
  • Quiet, moves a lot of air, high quality bearings.
Noctua NF-S12B redux-1200 PWM High Performance Cooling Fan
  • Fan works very well with plenty of airflow.
  • These are crazy quiet. Airflow seems great, at least my tower reads overall lower temps.
  • They're quiet, push a decent amount of air, and seem to last forever.
  • Decent airflow and static pressure. Great for case exhaust fans.
  • Perfectly silent and great airflow.
Size & Weight
4.72 in.
4.72 in.
4.72 in.
4.72 in.
0.98 in.
0.98 in.
6.4 oz.
5.74 oz.
Number of Coolers
Noise Level
17.8 dB
18.1 dB
Low-Noise Adapter, Anti-Stall Knobs, AAO frame, Integrated anti-vibration pads
Streamlined redux edition, Bevelled Blade Tips, Custom-designed PWM IC with SCD
Power Connector Type
What customers say about "Features"
Noctua NF-S12A PWM Premium Quiet Fan
  • Amazing fans as usual. Extremely quiet.
  • They are 4 pin, so if you have the proper controller they can go as low as 20% on a fan controller, instead of 40% on a non-PWM controller.
  • It is quiet. I can hear the airflow of course, which is not a problem.
  • These fans are very quiet, even without the included low-noise adapter.
  • The fan is very quiet and moves a decent amount of air.
Noctua NF-S12B redux-1200 PWM High Performance Cooling Fan
  • These fans are excellent and moving air and they're very quiet.
  • Noctua quality. Reasonable price. Dead quiet.
  • Quiet operation and great airflow.
  • Noctua is a good brand. The fans work well.
  • Extremely quiet! Moves a lot of air.
Warranty / Certifications
Manufacturer Warranty
6 year(s)
6 year(s)
Other Information

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