Noctua

Noctua NF-A6x25 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (60mm, Brown)

Name: Noctua NF-A6x25 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (60mm, Brown)
Brand: Noctua
SKU: B01G20PGOQ

Bottom line: The Noctua NF-A6x25 5V PWM: Whisper-quiet 19.3 dB(A) max at up to 3000 RPM PWM; main trade-off: 60mm size moves limited air vs larger 80/120mm fans.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-19

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Whisper-quiet 19.3 dB(A) max at up to 3000 RPM PWM
✓ Genuine 5V 4-pin PWM with polarity protection for USB/5V rails
✓ SSO2 bearing rated >150,000 h MTTF for 24/7 NAS use
✓ Drop-in fix for noisy 60mm fans in 3D printers, DVRs, routers
✓ Ships with anti-vibration mounts, y-cable and OmniJoin adaptor

Cons

✗ 60mm size moves limited air vs larger 80/120mm fans
✗ 3000 RPM audible near max in dead-silent rooms
✗ 5V-only; won't hit rated speed on 12V headers
✗ Brown/beige color clashes with blacked-out builds

Manufacturer description

Equipped with the advanced aerodynamic Flow Acceleration Channels system and Noctua's standard AAO construction, the NF-A6x25 5V PWM fan is the super optimized 60 x 25mm PWM enabled 5V version of quiet and premium quality. The NE-FD1 PWM IC fan designed by Noctua, which incorporates Smooth Commutation Drive technology as well as Noctua's SSO2 Bearing reference class, ensures optimal rotation smoothness and excellent long-term stability. Complemented by modular cables, an OmniJoin adapter kit, and a 6-year manufacturer's warranty, the NF-A6x25 5V PWM fan is an ideal choice for critical 5V…

SpecPicks Verdict

SpecPicks scored Noctua NF-A6x25 5V PWM 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, 4-pin PWM, max. 3000 RPM, max. 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
5V 4-pin PWM version (3000rpm maximum speed) with polarity protection for 5V applications with PWM speed control
Ideal replacement for noisy or broken 5V 6cm fans in 3D printers, DVRs, NAS, switches, routers, other network and storage devices, etc.
Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set for connection to proprietary fan headers

Full Specifications

Brand	Noctua
Model	19176
Voltage	5 volts
Material	Fibre-glass reinforced PBT
Dimensions	60x60x25 mm
Unit Count	1 Count
Noise Level	19.3 db
Part Number	NF-A6x25 5V PWM
Material Type	Fibre-glass reinforced PBT
Cooling Method	Air
Item Type Name	60 mm 3000 RPM 5 Volt Fan
Number of Items	1
Number of Packs	1
Vibration/Rumble	Yes
Compatible Devices	Desktop
Included Components	60mm Fan/s
Power Connector Type	4-Pin
Maximum Rotational Speed	3000 rpm
Item Dimensions L x W x H	2.36"L x 2.36"W x 0.98"H
Global Trade Identification Number	09010018100044

Ready to buy?

Noctua NF-A6x25 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (60mm, Brown) is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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