Noctua

Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

Name: Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)
Brand: Noctua
SKU: B00BEZZBFO
Price: 21.95 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-15

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$21.95

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View Current Price on Amazon → Compare to similar cooling & fans

*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.

Bottom line: The Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) is a specs-and-price decision rather than a crowd-consensus one in the cooling & fans category, priced around $21.95. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

The Noctua NF-S12A PWM is the airflow-optimised 120mm case fan you install when you want a PC that ventilates well and effectively disappears. This third-generation S12 design pairs Anti-Stall Knobs with Noctua's Advanced Acoustic Optimisation frame, so the blades keep moving air cleanly at low speed instead of stalling into turbulence. The 4-pin PWM connector gives your motherboard a broad 300-1200 RPM range to work with, and at the 1200 RPM ceiling the fan tops out at just 17.8 dB(A) - quiet enough that you will notice your drives before you notice the airflow. Drop in the supplied…

SpecPicks Verdict

SpecPicks scored Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the cooling & fans category. Noctua's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Frequently Asked Questions

How loud is the Noctua NF-S12A PWM at full speed?

It is rated at a maximum of 17.8 dB(A) at its 1200 RPM ceiling. Using the included Low-Noise Adaptor caps the fan at 900 RPM for even quieter operation.

Will this fan work as a radiator or heatsink fan?

Noctua designed the NF-S12A as an airflow-optimised fan for case intake and exhaust. Dense radiators and heatsink fins favor a static-pressure design instead, such as Noctua's F-series.

Does it plug into a standard motherboard fan header?

Yes. It uses a 4-pin PWM connector for automatic speed control on any 4-pin PWM header, running on 12V. A y-cable is included so two fans can share a single header.

What size case mount does the NF-S12A fit?

It measures 120 x 120 x 25 mm, the standard 120mm case fan format, so it fits any chassis, cabinet, or enclosure with a 120mm mount.

Is this fan worth $21.95 over a cheaper 120mm fan?

Buyers rate it 4.9 out of 5 across 3,149 reviews, and it is rated for over 150,000 hours MTTF. The bundled anti-vibration mounts, extension cable, and y-cable are typically sold separately elsewhere.

Pros & Cons

Pros

✓ Backed by Noctua's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Premium quiet fan, 120x120x25 mm, 12V, 4-pin PWM, max. 1200 RPM, max. 17.8 dB(A), >150,000 h MTTF
Award-winning third-gen 120x25mm S12 fan with Anti-Stall Knobs and Advanced Acoustic Optimisation frame for superior quiet cooling performance
Airflow-optimised design for highly efficient, near-silent ventilation of PC cases and other chassis (intake & exhaust), cabinet cooling, etc.
4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 300-1200rpm speed range (900rpm max. with supplied Low-Noise Adaptor)
Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header

Full Specifications

Brand	Noctua
Model	NF-S12A PWM
Voltage	12 Volts
Material	Fibre-glass reinforced PBT
Dimensions	120x120x25 mm
Unit Count	1 Count
Noise Level	17.8 Decibels
Part Number	NF-S12A PWM
Compatibility	PC
Material Type	Fibre-glass reinforced PBT
Cooling Method	Air
Number of Items	1
Vibration/Rumble	Yes
Air Flow Capacity	107.5 Cubic Meters Per Hour
Compatible Devices	Desktop
Power Connector Type	4-Pin
Warranty Description	6 year manufacturer’s warranty
Maximum Rotational Speed	1200 RPM
Item Dimensions L x W x H	4.72"L x 4.72"W x 0.98"H
Global Trade Identification Number	04716123314929

Ready to buy?

Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.