Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm | High Airflow Low Noise, 5V, 10mm Slim Fan, for Ventilation and Electronics Cooling, USB-A Power Adaptor, 5000rpm 4-Pin PWM

SpecPicks Verdict

SpecPicks scored Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm | High… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the cpu coolers & fans category. Noctua's cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Key Features

• Premium quiet fan, 40x40x10 mm, 5V, 4-pin PWM, max. 5000 RPM, max. 19.6 dB(A), >150,000 h MTTF
• Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
• 5V 4-pin PWM version (5000rpm maximum speed) with polarity protection for 5V applications with PWM speed control
• USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones
• Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

Full Specifications

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Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm | High Airflow Low Noise, 5V, 10mm Slim Fan, for Ventilation and Electronics Cooling, USB-A Power Adaptor, 5000rpm 4-Pin PWM is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Price and availability subject to change.