Noctua NF-S12A FLX, Premium Quiet Fan, 3-Pin (120mm, Brown)

(1512 Reviews)

Price
$13.17

Quantity
(10000 available )

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231 Ratings
209
14
3
3
2
Reviews
  • J. Y.

    09-06-2025

    SUPER quiet and moves air better than any other fan I have ever purchased.

  • T Suds

    Greater than one week

    I recently upgraded all the case fans in my NZXT Vulcan to Noctuas. The new fans are much quieter and keep the computer cooler.

  • Blair Franecki DVM

    > 3 day

    Extremely quiet.

  • John Q Public

    13-06-2025

    Fit my application perfectly. The fan comes with everything you need to install.

  • Toluallii F. Nielsen

    Greater than one week

    These are quiet and move quite a bit of air. Well worth the price paid thus far.

  • Sam

    > 3 day

    Gives a good blow Job to the case!

  • MLO

    Greater than one week

    I like Noctua fans. Im in for the quiet with good air flow. These are the ticket. Price could be lower.

  • TLH

    > 3 day

    Lasted only a few weeks before the blades started making noise while turning and then it just quit. Probably a fluke so would buy again.

  • grace

    > 3 day

    They work as described. They were a replacement for fans that seemed to rattle all the time. These are very quiet and supply the air we need.

  • Kindle Customer

    Greater than one week

    Would buy again

NF-S12A FLX headerNF-S12A FLX header

The NF-S12A marks the third generation of Noctua’s signature S12 series quiet case fans, which have received more than 250 awards and recommendations from the international press. Featuring a further refined blade design with Anti-Stall Knobs that works in tandem with the new AAO (Advanced Acoustic Optimisation) 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. Its superb running smoothness, SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for quiet case cooling

NF-S12ANF-S12A

AAO frame

Noctua"s AAO (Advanced Acoustic Optimisation) 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.

NF-S12ANF-S12A

SSo2SSo2

NF-S12ANF-S12A

NF-S12A FLX scopeNF-S12A FLX scope

Integrated anti-vibration pads

Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.

SSO2 bearing

The NF-S12A 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 stabilisation, precision and durability.

Inner Surface Microstructures

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.

Scope of delivery

  • NA-RC10 Low-Noise Adaptor (L.N.A)
  • NA-RC12 Ultra-Low-Noise Adaptor (U.L.N.A)
  • NA-AC1 3:4-pin adaptor cable
  • NA-EC1 30cm extension cable
  • 4x NA-AV1 anti-vibration mounts
  • Fan screws
s12as12a

Anti-Stall Knobs

The NF-S12A"s Anti-Stall Knobs reduce flow separation phenomena in medium to high impedance situations and thereby increase the fan"s stall margin. This means that the NF-S12A is even more versatile than its renowned predecessor and can achieve better performance on heatsinks and radiators.

NF-S12A PWM table NF-S12A FLX table NF-S12A ULN table NF-S12A PWM chromax.black.swap table
NF-S12A PWM NF-S12A FLX NF-S12A ULN NF-S12A PWM chromax.black.swap
Connector 4-pin PWM 3-pin 3-pin 4-pin PWM
Voltage 12V 12V 5V 12V
RPM Max: 1200 / Min: 300 1200 800 Max: 1200 / Min: 300
RPM with L.N.A. 900 900 600 -
RPM with U.L.N.A. - 700 - -
Acoustical Noise 17,8 dB(A) 17,8 dB(A) 8,6 dB(A) 17,8 dB(A)
Acoustical Noise with L.N.A. 10,7 dB(A) 10,7 dB(A) 6,7 dB(A) -
Acoustical Noise with U.L.N.A. - 7,4 dB(A) - -
Size (mm) 120x120x25 120x120x25 120x120x25 120x120x25
Colour Brown & Beige Brown & Beige Brown & Beige Black with swappable coloured anti-vibration pads

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