---
product_id: 263809764
title: "Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown)"
brand: "noctua"
price: "VT14458"
currency: VUV
in_stock: false
reviews_count: 5
category: "Noctua"
url: https://www.desertcart.vu/products/263809764-noctua-noctua-nf-a4x20-5v-3-pin-premium-quiet-fan
store_origin: VU
region: Vanuatu
---

# 5V low-voltage efficient power 5000 RPM high-speed airflow Ultra-quiet 14.9 dB(A) noise level Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown)

**Brand:** noctua
**Price:** VT14458
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Cool your tech, not your vibe — silent power in a compact package!

## Quick Answers

- **What is this?** Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) by noctua
- **How much does it cost?** VT14458 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/263809764-noctua-noctua-nf-a4x20-5v-3-pin-premium-quiet-fan)

## Best For

- noctua enthusiasts

## Why This Product

- Trusted noctua brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Cooling:** Experience premium airflow without the noise—perfect for focused workspaces and silent setups.
- • **Plug & Play Versatility:** Includes 3-pin Molex connector, OmniJoin adapter, and anti-vibration mounts for effortless installation.
- • **Compact 40x40x20mm Design:** Fits seamlessly into tight 1U server racks, routers, NAS devices, and compact industrial gear.
- • **Advanced Acoustic Optimization:** Award-winning frame with Flow Acceleration Channels ensures maximum cooling with minimal sound.
- • **Built to Last Over 150,000 Hours:** Engineered for ultra-reliable, long-term performance in demanding professional environments.

## Overview

The Noctua NF-A4x20 5V is a premium 40mm quiet fan designed for professional-grade cooling in compact devices. Operating at 5000 RPM with an ultra-low noise level of 14.9 dB(A), it features advanced acoustic optimization and durable construction for over 150,000 hours of reliable use. Ideal for 1U servers, network equipment, and industrial applications, it comes with versatile connectors and anti-vibration mounts for seamless integration.

## Description

Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) Brand : Noctua.

Review: The product arrived quickly and was well packaged. I purchased this fan to cool down a Raspberry pi B+ which I’m using as a light weight desktop for an entertainment system. The only problem I had encountered is that in certain circumstances the pi would overheat and start to throttle the processor back to cool it down. With this fan running which is barely audible, it cools the Raspberry pi down to 27.8C on idle and I haven’t seen it go up higher than 48C while running as much stuff in the background to push that processor. All in all great fan and I would recommend it to anyone who requires good airflow and quiet operation for their cooling requirements.
Review: I used the noctua fan to replace a loud fan in a network switch. The OmniJoin adapter that was included was easily usable and works well. I had to use the anti-vibration fan connectors because the previous fan screw holes were smaller than the noctua fan screw holes. The anti-vibration fan connectors were installed and trimmed, but the network switch case didn't fit properly over the anti-vibration fan connectors. It had to be shoved on, but it worked out. The fan moves a good amount of air, but not as much as the original fan. This is still enough air to keep the switch cool, while being fairly quiet. The fan is still audible (at 5v constant, non-PWM), but I believe this is mostly due to the design of the case, not the fan's fault. The box is a bit overkill and has great presentation, but I would rather the item cost less than have a fancy box. Overall, this is a great product and can make most server gear into home gear. There isn't much for competition of noctua's 40mm quiet fans, so you kind of have to deal with noctua's high prices if you need a quiet 40mm fan.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072Q3CMRW |
| Best Sellers Rank | #139,164 in Computers ( See Top 100 in Computers ) #1,266 in Computer Case Fans |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.8 4.8 out of 5 stars (376) |
| Manufacturer | Noctua |
| Material Type | Fibre-glass reinforced PBT |
| Maximum Rotational Speed | 5000 RPM |
| Noise Level | 14.9 Decibels |
| Power Connector Type | 3-Pin |
| UPC | 841500110123 |
| Unit Count | 1.0 Count |
| Voltage | 5 Volts |

## Product Details

- **Brand:** Noctua
- **Compatible devices:** Desktop
- **Cooling method:** Air
- **Power connector type:** 3-Pin
- **Voltage:** 5 Volts

## Images

![Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 1](https://m.media-amazon.com/images/I/71lyRpVR4OL.jpg)
![Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 2](https://m.media-amazon.com/images/I/71tPkk5TaXL.jpg)
![Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 3](https://m.media-amazon.com/images/I/81trIc57WdL.jpg)
![Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 4](https://m.media-amazon.com/images/I/71+IJ7qyW-L.jpg)
![Noctua Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 5](https://m.media-amazon.com/images/I/71G5+G0k2+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***A on 23 February 2019*

The product arrived quickly and was well packaged. I purchased this fan to cool down a Raspberry pi B+ which I’m using as a light weight desktop for an entertainment system. The only problem I had encountered is that in certain circumstances the pi would overheat and start to throttle the processor back to cool it down. With this fan running which is barely audible, it cools the Raspberry pi down to 27.8C on idle and I haven’t seen it go up higher than 48C while running as much stuff in the background to push that processor. All in all great fan and I would recommend it to anyone who requires good airflow and quiet operation for their cooling requirements.

### ⭐⭐⭐⭐⭐ Review
*by A***A on 28 April 2020*

I used the noctua fan to replace a loud fan in a network switch. The OmniJoin adapter that was included was easily usable and works well. I had to use the anti-vibration fan connectors because the previous fan screw holes were smaller than the noctua fan screw holes. The anti-vibration fan connectors were installed and trimmed, but the network switch case didn't fit properly over the anti-vibration fan connectors. It had to be shoved on, but it worked out. The fan moves a good amount of air, but not as much as the original fan. This is still enough air to keep the switch cool, while being fairly quiet. The fan is still audible (at 5v constant, non-PWM), but I believe this is mostly due to the design of the case, not the fan's fault. The box is a bit overkill and has great presentation, but I would rather the item cost less than have a fancy box. Overall, this is a great product and can make most server gear into home gear. There isn't much for competition of noctua's 40mm quiet fans, so you kind of have to deal with noctua's high prices if you need a quiet 40mm fan.

### ⭐⭐⭐⭐⭐ Review
*by S***D on 8 July 2024*

I was skeptical when the price of this fan as so much more than others, boy was I glad I still purchased it! The quality of this fan compared to others is unmatched. This fan works off of a 5V pin from a raspberry pi, which most others do not. You can barely tell the fan is on when listening to it it is so quiet. My Pi is in a 3D printed case and without the fan reaches 190C within minutes. With the fan, the pi has not exceeded 110C once over the course of months. I can not rave enough about this fan.

## Frequently Bought Together

- Noctua NF-A4x20 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x20mm, Brown)
- Noctua NF-A4x10 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x10mm, Brown)
- OPSFALCON 2 Pack USB to 3-Pin / 4-Pin PWM 5V USB Sleeved Fan Power Adapter Cable, USB to 3 Pin / 4 Pin Case Fan Adapter Connector Cable (USB-3Pin/4Pin Cable)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-06*