Noctua
Noctua NF-A12x25 G2 PWM chromax.Black
Bottom line: The Noctua NF-A12x25 G2 PWM chromax.Black ($34.95 on Amazon as of 2026-10-21 04:20 UTC): 360-1800rpm PWM range with 0% stop for semi-passive idle; main trade-off: 25mm thickness limits fit in slim or low-clearance builds.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 360-1800rpm PWM range with 0% stop for semi-passive idle
- ✓ Sterrox LCP impeller with winglets and ultra-tight tip clearance
- ✓ SSO2 bearing rated MTTF over 150,000 hours
- ✓ Ships with LNA, extension cable, splitter, screws and gasket
Cons
- ✗ 25mm thickness limits fit in slim or low-clearance builds
- ✗ Single fan per box, so multi-fan builds get costly fast
- ✗ Needs a 4-pin PWM header for the full speed range
- ✗ Black-on-black look is fixed; no RGB or color swap options
SpecPicks Verdict
SpecPicks scored Noctua NF-A12x25 G2 PWM chromax.Black 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
- Next-gen 120x25mm design for unprecedented quiet cooling performance in both high airflow and high static pressure applications: ideal as a PC case fan, on CPU coolers and water cooling radiators!
- All-black chromax version with black anti-vibration mounts; 12cm anti-vibration gasket for tighter seal on radiators, fan screws, Low-Noise Adaptor (LNA), extension cable and splitter cable included
- State-of-the-art engineering (Progressive Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance)
- 4-pin PWM version for automatic speed control via 4-pin PWM motherboard fan headers, 360-1800rpm speed range (near-silent at idle, powerful under load), fan stops at 0% PWM (semi-passive option)
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, overvoltage and overcurrent (short-circuits)
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A12x25 G2 PWM chromax.black |
| Voltage | 12 volts |
| Wattage | 1.8 watts |
| Material | Sterrox LCP |
| Noise Level | 22.5 db |
| Part Number | NF-A12x25 G2 PWM chromax.black |
| Compatibility | PC |
| Material Type | Sterrox LCP |
| Cooling Method | Air |
| Number of Items | 1 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 107.3 cubic meter per hour |
| Compatible Devices | Desktop |
| Power Connector Type | 4-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 1800 rpm |
| Item Dimensions L x W x H | 4.72"L x 4.72"W x 0.98"H |
| Full listing title | Noctua NF-A12x25 G2 PWM chromax.Black, High-Performance Quiet Fan 120mm | High Airflow & Static Pressure, Low-Noise 25mm Thick Fan for Coolers/Radiators/Cases, Rich Accessory Kit, 1800rpm 4-Pin PWM |
Ready to buy?
Noctua NF-A12x25 G2 PWM chromax.Black, High-Performance Quiet Fan 120mm | High Airflow & Static Pressure, Low-Noise 25mm Thick Fan for Coolers/Radiators/Cases, Rich Accessory Kit, 1800rpm 4-Pin PWM 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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