Noctua
Noctua NF-A4x10 24V PWM, High-Performance Quiet Fan 40mm
Bottom line: The Noctua NF-A4x10 24V PWM ($15.95 on Amazon as of 2026-10-21 04:25 UTC): 24V native version, no step-down needed for 3D printer boards; main trade-off: 24V only, incompatible with standard 12V PC headers.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 24V native version, no step-down needed for 3D printer boards
- ✓ Near-silent SSO2 bearing rated MTTF over 150,000 hours
- ✓ 4-pin PWM auto speed control, 5000rpm max airflow
- ✓ UL + TUV certified, reverse-polarity and short-circuit protected
Cons
- ✗ 24V only, incompatible with standard 12V PC headers
- ✗ 40x10mm size limits static pressure vs thicker 40mm fans
- ✗ 5000rpm can get audible at full PWM under load
- ✗ Brown/beige color clashes with most build aesthetics
SpecPicks Verdict
SpecPicks scored Noctua NF-A4x10 24V PWM using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Noctua's power supplies 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 power supplies 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
- 24V version of Noctua’s award-winning quiet 40x10mm fan, ideal upgrade/replacement 4cm fan for 3D printing (hot end or part cooling) and other 24V applications
- 5000rpm max., 4-pin PWM connector for automatic speed control via 4-pin PWM fan headers (maximum airflow performance when required, near-silent at lower speeds)
- NA-AC9 adaptor cable for popular 3D printers with JST XHP-2 2.5mm headers (e.g. Creality Ender 3 & CR-10, Anycubic Mega), ideal to improve printing performance and quietness of operation
- Includes anti-vibration mounts, fan screws, extension cable, Low-Noise Adaptor (LNA), NA-AC9 adaptor and OmniJoin adaptor set for connecting the fan to proprietary fan headers
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, over voltage and over current (short-circuits)
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A4x10 24V PWM |
| Voltage | 24 volts |
| Wattage | 1.08 watts |
| Material | Fibre-glass reinforced PBT |
| Unit Count | 1 Count |
| Noise Level | 19.6 db |
| Part Number | NF-A4x10 24V PWM |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Number of Packs | 1 |
| Vibration/Rumble | Yes |
| Compatible Devices | Desktop |
| Included Components | NF-A4x10 24V PWM |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 5000 rpm |
| Item Dimensions L x W x H | 1.57"L x 1.57"W x 0.39"H |
| Global Trade Identification Number | 09010018100679 |
Ready to buy?
Noctua NF-A4x10 24V PWM, High-Performance Quiet Fan 40mm 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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