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Noctua NF-S12A PWM 120mm case fan
Noctua

Noctua NF-S12A PWM

Expert rating8 / 10

Fan Size:
120mm
Airflow:
44.9 CFM
Static Pressure:
1.06 mmH2O
Noise Level:
17.8 dBA

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: Noctua Last updated: 2026-09-12

Where to buy

Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM) Review

If you're after the quietest 120mm case fan Noctua makes that still moves real air, the NF-S12A PWM is the one people usually mean when they ask about a 'silent Noctua fan'.

It trades the A12x25's raw pressure for a wider, slower-spinning blade that stays under 18 dBA at full tilt, so we'd put it in front of a radiator-free case build where hearing the fan at all is the failure state.

Where It Fits

The S12A PWM is Noctua's general-purpose case and CPU-cooler fan, not their static-pressure specialist. It's built for open airflow paths through mesh fronts and vented tops, not for pushing through a dense radiator.

Comparison to Alternatives

Against the Noctua NF-A12x25 PWM already in this catalog, the S12A is quieter at the same RPM but gives up nearly half the static pressure, so it's the better pick for a mesh-front airflow case while the A12x25 stays the pick for anything with a filter or radiator in the way. Compared to the Arctic P12 PWM PST, the S12A costs roughly four times as much per fan and doesn't clearly out-cool it, so the Arctic remains the value pick if a full case's worth of fans is on the shopping list.

Specifications

Identity and packaging

BrandNoctua
ModelNF-S12A PWM
Fan Thickness25 mm
Pack Quantity1

Design

Fan Size120 mm
Bearing TypeFluid Dynamic
LightingNone

Performance

Static Pressure1.19 mmH2O
Max Speed1200 RPM
Noise Level17.8 dBA
PWM ControlYes

Performance at maximum speed

Airflow63.27 CFM

Performance at quiet speed

Quiet Speed900 RPM
Airflow At Quiet Speed48.97 CFM
Noise Level At Quiet Speed10.7 dBA
Zero RPM CapableYes

Motor and bearing

Bearing Marketing NameSSO2
Rated Life150000 hours
Blade MaterialPBT

Airflow direction and frame

Mounting Hole Spacing105 mm
Anti Vibration PadsYes

Power and control

Max Power Draw1.44 W
Start Voltage7 V

Connection and daisy chain

Connector Type4-Pin PWM
Lighting ConnectorNone

Lighting

RGB LightingNo
Lighting TypeNone

Physical and finish

ColorwayBrown And Beige
Cable Length200 mm
Weight140 g

Market

Warranty6 years
PositioningPremium
Source URLhttps://www.noctua.at/en/products/nf-s12a-pwm/specifications

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8 / 10

An excellent quiet airflow fan for open cases, but expensive per-fan for how little static pressure it offers.

Best for

  • Mesh-front cases with unobstructed airflow paths
  • Builds where near-silent operation matters more than raw CFM
  • Noctua owners standardizing on one fan family across the case

Not for

  • Radiator or filtered-intake use where pressure matters more
  • Budget multi-fan builds needing 6+ fans
  • RGB-focused builds

FAQs

What are the key specifications of the Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM)?

The Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM) is a case fan from Noctua. Key specs: Fan Size 120, Bearing Type SSO, Lighting No RGB, Airflow 44.9, Static Pressure 1.06.

Will the Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM) work with my current setup?

The Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM) lists Fan Size is 120. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM) best suited to?

It suits mesh-front cases with unobstructed airflow paths, builds where near-silent operation matters more than raw cfm, noctua owners standardizing on one fan family across the case.

What are the drawbacks of the Noctua NF-S12A PWM (120mm/44.9 CFM/1.06 mmH2O Static Pressure/1200 RPM Max/17.8 dBA/SSO Bearing/No RGB/PWM)?

It is a poor fit for radiator or filtered-intake use where pressure matters more, budget multi-fan builds needing 6+ fans, rgb-focused builds.

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