---
product_id: 71150027
title: "Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm"
brand: "noctua"
price: "388 kr"
currency: NOK
in_stock: true
reviews_count: 13
category: "Noctua"
url: https://www.desertcart.no/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm
store_origin: NO
region: Norway
---

# 5000 RPM max speed Ultra-quiet 19.6 dB(A) 5V USB & PWM compatible Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm

**Brand:** noctua
**Price:** 388 kr
**Availability:** ✅ In Stock

## Summary

> 🌀 Silent cooling that fits anywhere—because your gear deserves the best breeze.

## Quick Answers

- **What is this?** Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm by noctua
- **How much does it cost?** 388 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm)

## 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

- • **Built to Last:** Engineered with fibre-glass reinforced PBT and backed by a 6-year warranty for unmatched durability.
- • **Smart PWM Control:** 4-pin PWM with polarity protection ensures precise speed adjustments and energy-efficient cooling.
- • **Compact Yet Mighty:** Slim 40x40x10 mm design fits tight spaces while delivering up to 8.9 m³/h airflow—perfect for sleek setups.
- • **Plug & Play Versatility:** Includes USB power adaptor and OmniJoin set for seamless integration with USB ports and proprietary headers.
- • **Whisper-Quiet Powerhouse:** Experience premium airflow at a barely-there 19.6 dB noise level—cool your tech without the buzz.

## Overview

The Noctua NF-A4x10 5V PWM is a high-performance, ultra-quiet 40mm fan designed for efficient cooling in compact spaces. Operating at up to 5000 RPM with a noise level as low as 19.6 dB(A), it features advanced acoustic optimization and Flow Acceleration Channels for superior airflow. Compatible with 5V USB and PWM controls, it includes versatile mounting accessories and a 6-year warranty, making it the go-to choice for professionals seeking reliable, silent cooling solutions.

## Description

Buy 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: Case Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Quiet and effective in a 1U server - I’m using these in a 1U server and they work great at keeping the hard drives cool. They move plenty of air for their size and are surprisingly quiet, especially compared with the fans that came with the server case. Very happy with them.
Review: Well Worth the Money Spent - Noctua NF-A4x10 5v PWM Fan In my opinion, these fans live up to their premium quality advertisement. Build quality is excellent, noise is very minimal, and the 40 millimeter depth allows for extra airflow. You may not enjoy the color but I'm confident you will enjoy the quality and performance. Used to cool to steering wheel pedal sets they perform quite well and are nearly silent. Cooling is very efficient. These can be mounted with screws or with the included rubber grommets. Please bear in mind these are for 5 volt current not 12 volt. They will work with both PWM or direct voltage applications

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DXS86G7 |
| Air Flow Capacity | 8.9 cubic meter per hour |
| Best Sellers Rank | #88 in Computer Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 1,154 Reviews |
| Included Components | NF-A4x10 5V PWM |
| Item Dimensions L x W x H | 1.57"L x 1.57"W x 0.39"H |
| Item Highlight | High Airflow Low Noise, 5V, 10mm Slim Fan, for Ventilation and Electronics Cooling, USB-A Power Adaptor, 5000rpm 4-Pin PWM |
| Item Weight | 80 g |
| Manufacturer | Noctua |
| Material Type | Fibre-glass reinforced PBT |
| Maximum Rotational Speed | 5000 rpm |
| Model | NF-A4X10 5V PWM |
| Noise Level | 19.6 db |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | NF-A4X10 5V PWM |
| Power Connector Type | 4-Pin |
| Product Dimensions | 1.57"L x 1.57"W x 0.39"H |
| UPC | 841501110320 |
| Unit Count | 1 Count |
| Voltage | 5 volts |
| Warranty Description | 6 year manufacturer’s warranty |

## Product Details

- **Air Flow Capacity:** 8.9 cubic meter per hour
- **Brand:** Noctua
- **Compatible Devices:** Desktop
- **Cooling Method:** Air
- **Material:** Fibre-glass reinforced PBT
- **Maximum Rotational Speed:** 5000 rpm
- **Noise Level:** 19.6 db
- **Power Connector Type:** 4-Pin
- **Product Dimensions:** 1.57"L x 1.57"W x 0.39"H
- **Voltage:** 5 volts

## Images

![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 1](https://m.media-amazon.com/images/I/81ud+v9ghlL.jpg)

## Questions & Answers

**Q: I need to control the speed using arduino (the arduino has a 500 hz pwm frecuency) can this fan handle this frequency for pwm or what it is?**
A: You can change the PWM to FAST PWM for these applications on Arduino. Googalize "25k PWM Arduino code". The real issue is trying to find data specs on the PWM IC that Noctua uses. Googalize "Noctua PWM white paper" and you'll get all the info you need on their PWM specs. Target frequency is 25kHz but the acceptable range is 21kHz to 28kHz. GOOD LUCK.

**Q: Is there a 5vdc pwm temperature controller for this fan? been searching, but can't find.**
A: No its controlled by the motherboard.  I threw away the usb adapter cable, If it was used to power the fan, since usb is 5v, I would expect it to run at full speed.  I used my fan on an NVIDIA NANO Single board computer

**Q: how long is the cable, from the fan all the way to the usb connector?  i want to put this in a small area, so looking for one with a very short cable**
A: 40cm.

**Q: is there a usb version of the noctua 40x20 5v fan**
A: No, there is no USB specific version available. But the kit does include a USB Type A to 4-pin female adapter cable.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quiet and effective in a 1U server
*by E***I on August 1, 2026*

I’m using these in a 1U server and they work great at keeping the hard drives cool. They move plenty of air for their size and are surprisingly quiet, especially compared with the fans that came with the server case. Very happy with them.

### ⭐⭐⭐⭐⭐ Well Worth the Money Spent
*by F***A on November 2, 2025*

Noctua NF-A4x10 5v PWM Fan In my opinion, these fans live up to their premium quality advertisement. Build quality is excellent, noise is very minimal, and the 40 millimeter depth allows for extra airflow. You may not enjoy the color but I'm confident you will enjoy the quality and performance. Used to cool to steering wheel pedal sets they perform quite well and are nearly silent. Cooling is very efficient. These can be mounted with screws or with the included rubber grommets. Please bear in mind these are for 5 volt current not 12 volt. They will work with both PWM or direct voltage applications

### ⭐⭐⭐⭐⭐ Super quiet fan!
*by E***E on August 12, 2026*

Excellent fan, amazingly quiet. Using it with the USB adapter to keep the Eufy Homebase 3 cool

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.no/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm](https://www.desertcart.no/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-22*