Noctua
Noctua NF-A12x15 PWM, Premium Quiet Slim Fan, 4-Pin (120x15mm, Brown)
Bottom line: The Noctua NF-A12x15 PWM ($23.95 on Amazon as of 2026-10-21 16:25 UTC): 15mm depth fits low-profile coolers, HTPCs and ITX cases where 25mm fans will not; main trade-off: brown and beige color scheme clashes with most build aesthetics.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 15mm depth fits low-profile coolers, HTPCs and ITX cases where 25mm fans will not
- ✓ 23.9 dB(A) maximum noise even at the full 1850 RPM ceiling
- ✓ Low-Noise Adaptor included, capping the fan at 1400 RPM for quieter operation
- ✓ 4-pin PWM header support for automatic motherboard-controlled speed scaling
- ✓ Ships with anti-vibration mounts, screws, extension cable and a two-fan y-cable
Cons
- ✗ Brown and beige color scheme clashes with most build aesthetics
- ✗ No RGB or ARGB lighting of any kind
- ✗ 15mm thickness moves less air than a 25mm fan at matched RPM
- ✗ 1850 RPM ceiling limits static pressure for thick radiator duty
Manufacturer description
The Noctua NF-A12x15 PWM solves a problem most 120mm fans create: it needs only 15mm of depth. That slim profile makes it the fan you reach for when a low-profile CPU cooler, an HTPC chassis, or an ITX build leaves no room for a standard 25mm fan, and it does the job without the airflow penalty slim fans usually carry. Noctua's A-series design pairs Flow Acceleration Channels with an Advanced Acoustic Optimisation frame, so the fan tops out at 1850 RPM and just 23.9 dB(A) - quiet enough to disappear in a desk-side build. Drop in the supplied Low-Noise Adaptor and it caps at 1400 RPM for…
SpecPicks Verdict
SpecPicks scored Noctua NF-A12x15 PWM 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.
Frequently Asked Questions
Will the NF-A12x15 fit my low-profile CPU cooler?
It measures 120 x 120 x 15 mm, which is 10mm slimmer than a standard 120mm fan. Noctua designed it for low-profile CPU coolers, HTPCs, ITX builds and other space-restricted spots. Measure your available clearance and confirm 120mm mounting holes before ordering.
How loud is this fan at full speed?
Noctua rates it at a maximum of 23.9 dB(A) at its top speed of 1850 RPM. Using the included Low-Noise Adaptor drops the ceiling to 1400 RPM for quieter running.
Does it support PWM speed control?
Yes. This is the 4-pin PWM version, so a 4-pin motherboard fan header can automatically scale its speed from idle up to 1850 RPM based on temperature. Three-pin headers will run it, but without PWM control.
What comes in the box?
Noctua includes anti-vibration mounts, fan screws, an extension cable, a y-cable for running two PWM fans from one header, and the Low-Noise Adaptor that caps speed at 1400 RPM.
How long does this fan last?
Noctua rates the NF-A12x15 at more than 150,000 hours MTTF. Check the product listing for current warranty terms, which Noctua handles directly.
Key Features
- Premium quiet slim fan, 120x120x15 mm, 12V, 4-pin PWM, max. 1850 RPM, max. 23.9 dB(A), >150,000 h MTTF
- Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 120x15mm slim design ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications etc.
- 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 1850rpm maximum speed (1400rpm with supplied Low-Noise Adaptor)
- Includes anti-vibration mounts, fan screws, extension cable and y-cable for running two PWM fans on the same header
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A12x15 PWM |
| Voltage | 12 Volts |
| Wattage | 1.56 watts |
| Material | Fibre-glass reinforced PBT |
| Dimensions | 120x120x15 mm |
| Unit Count | 1.0 Count |
| Noise Level | 23.9 Decibels |
| Part Number | NF-A12x15 PWM |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 94.2 Cubic Meters Per Hour |
| Compatible Devices | Computers |
| Included Components | NOCTUA NF-A12X15 PWM |
| Power Connector Type | 4-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 1850 RPM |
| Item Dimensions L x W x H | 4.72"L x 4.72"W x 0.59"H |
Ready to buy?
Noctua NF-A12x15 PWM, Premium Quiet Slim Fan, 4-Pin (120x15mm, Brown) 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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