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Noctua NF-A4x20 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x20mm, Brown)

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Premium quiet fan, 40x40x20 mm, 5V, 3-pin Molex, 5000 RPM, 14.9 dB(A), >150,000 h MTTF

Overview

Specs

Reviews

Premium quiet fan, 40x40x20 mm, 5V, 3-pin Molex, 5000 RPM, 14.9 dB(A), >150,000 h MTTF
Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
40x20mm size ideal for 1U applications or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs
5V 3-pin version (5000RPM) for 5V-based industrial applications or replacing 5V fans in various devices
Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

Details
Fan Counts	1 Fan
Fan Controller	No Controller
Type	Case Fan
Fan Thickness	20mm

Additional Information
First Listed on Newegg	March 01, 2026

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies*

Return for refund within: 30 days
Return for replacement within: non-replaceable
This item is covered by Jiamayanonly Return Policy
*Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.

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Item#: 9SIC4CTKT58536