Noctua
Noctua NF-A6x25 5V
Bottom line: The Noctua NF-A6x25 5V: 19.3 dB(A) at full 3000 RPM tilt - quieter than most stock 60mm fans; main trade-off: 25mm thickness will not fit chassis cut out for slim 10-15mm 60mm fans.
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Pros & Cons
Pros
- ✓ 19.3 dB(A) at full 3000 RPM tilt - quieter than most stock 60mm fans
- ✓ Rated >150,000 h MTTF, so set-and-forget in always-on DVRs and NAS boxes
- ✓ Native 5V 3-pin with polarity protection; no resistor or step-down wiring needed
- ✓ OmniJoin adaptor set splices onto proprietary fan headers on sealed devices
- ✓ Ships with anti-vibration mounts, screws and extension cable in the box
Cons
- ✗ 25mm thickness will not fit chassis cut out for slim 10-15mm 60mm fans
- ✗ 5V 3-pin only - will not run correctly off a standard 12V motherboard header
- ✗ Brown and beige color scheme clashes with black enclosures and windowed cases
- ✗ 3-pin means voltage control only; no PWM header speed curve from the host device
SpecPicks Verdict
SpecPicks scored Noctua NF-A6x25 5V using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. Noctua's retro cpu coolers & 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 retro cpu coolers & 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
- Premium quiet fan, 60x60x25 mm, 5V, 3-pin Molex, 3000 RPM, 19.3 dB(A), >150,000 h MTTF
- Award-winning 60x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 3-Pin 5V version (3000 RPM) with polarity protection for 5V industrial applications.
- Ideal replacement for noisy or broken 5V 6cm fans in DVRs, NAS, network and storage devices, 3D printers, etc.
- Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connection to proprietary fan headers
Full Specifications
| Brand | Noctua |
|---|---|
| Model | Noctua NF-A6x25 5V |
| Voltage | 5 volts |
| Material | Fibre-glass reinforced PBT |
| Dimensions | 60x60x25 mm |
| Unit Count | 1 Count |
| Noise Level | 19.3 db |
| Part Number | Noctua NF-A6x25 5V |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Number of Packs | 1 |
| Vibration/Rumble | Yes |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 3000 rpm |
| Item Dimensions L x W x H | 2.36"L x 2.36"W x 0.98"H |
| Full listing title | Noctua NF-A6x25 5V, High-Performance Quiet Fan 60mm | High Airflow Low Noise, 5V, 25mm Thick Fan, for Ventilation and Electronics Cooling, With OmniJoin Adaptor, 3000rpm 3-Pin |
Ready to buy?
Noctua NF-A6x25 5V, High-Performance Quiet Fan 60mm | High Airflow Low Noise, 5V, 25mm Thick Fan, for Ventilation and Electronics Cooling, With OmniJoin Adaptor, 3000rpm 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.
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