Product Comparison: Noctua NF-S12A PWM vs Noctua NF-S12A FLX


General Specifications
Brand
Noctua
Noctua
Model
NF-S12A PWM
NF-S12A FLX
Origin
China
China
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 FLX version provides 1200/900/700rpm speed settings via the supplied Low-Noise Adaptors in order to give you full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation.
Key Specs
Fan Bearing Technology
SSO2 Bearing
SSO2 Bearing
Max. Airflow
63.27 CFM
63.27 CFM
Speed
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-S12A FLX Premium Quiet Fan
  • Massive airflow and almost silent.
  • Airflow is excellent. Highly recommend.
  • Probably the quietest fan I've ever used and yet still has great airflow.
  • The fan is very quiet and moves a lot of air.
  • Insanely good performance! Very quiet, high airflow.
Size & Weight
Height
4.72 in.
4.72 in.
Width
4.72 in.
4.72 in.
Depth
0.98 in.
0.98 in.
Weight
6.4 oz.
6.4 oz.
Features
Number of Coolers
1
1
Noise Level
17.8 dB
17.8 dB
Extras
Low-Noise Adapter, Anti-Stall Knobs, AAO frame, Integrated anti-vibration pads
Low-Noise Adapter, Anti-Stall Knobs, AAO frame
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-S12A FLX Premium Quiet Fan
  • Much more quiet than the stock fan and same airflow.
  • Great airflow with impressively little noise.
  • The build quality is excellent.
  • These things are quieter than my desk fan!
  • These fans are ridiculously quiet even on the medium setting and they sure do move a lot of air.
Warranty / Certifications
Certifications
CE, FCC
CE, FCC
Manufacturer Warranty
6 year(s)
6 year(s)
Other Information
Manufacturer
Other reviews