Noctua
Noctua NF-S12A ULN
Bottom line: The Noctua NF-S12A ULN ($21.95 on Amazon as of 2026-10-21 16:25 UTC): Max 8.6 dB(A) at 800 RPM, drops to 600 RPM with the included adaptor; main trade-off: 800 RPM ceiling limits it to low-restriction intake/exhaust, not thick radiators.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Max 8.6 dB(A) at 800 RPM, drops to 600 RPM with the included adaptor
- ✓ Anti-Stall Knobs on the third-gen S12 blade design
- ✓ Advanced Acoustic Optimisation frame cuts frame-borne noise
- ✓ Ships with anti-vibration mounts, screws, ULN adaptor, extension and 3:4-pin adaptor
Cons
- ✗ 800 RPM ceiling limits it to low-restriction intake/exhaust, not thick radiators
- ✗ 3-pin only, so no motherboard PWM curve control
- ✗ Brown and beige colorway clashes with most RGB builds
- ✗ 25mm depth needs standard clearance; no slim variant here
SpecPicks Verdict
SpecPicks scored Noctua NF-S12A ULN using a rating × review-volume × price-fit model applied to published specs and reviews 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Ultra low noise fan, 120x120x25 mm, 12V, 3-pin Molex, 800/600 RPM, max. 8.6 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.
- 3-pin ULN version with 800rpm (600rpm with supplied Low-Noise Adaptor) for serious silent enthusiasts who demand the utmost quietness of operation
- Includes anti-vibration mounts, fan screws, Ultra-Low-Noise Adaptor, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-S12A ULN |
| Voltage | 12 volts |
| Material | Fibre-glass reinforced PBT |
| Dimensions | 120x120x25 mm |
| Unit Count | 1 Count |
| Noise Level | 8.6 db |
| Part Number | NF-S12A ULN |
| Compatibility | PC |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Vibration/Rumble | Yes |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 800 rpm |
| Item Dimensions L x W x H | 4.72"L x 4.72"W x 0.98"H |
| Global Trade Identification Number | 00842431014245 |
| Full listing title | Noctua NF-S12A ULN, High-Performance Whisper Quiet Fan 120mm | Ultra Low Noise 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2 Speed Settings 800/600rpm 3-Pin |
Ready to buy?
Noctua NF-S12A ULN, High-Performance Whisper Quiet Fan 120mm | Ultra Low Noise 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2 Speed Settings 800/600rpm 3-Pin is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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