---
product_id: 71150027
title: "NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm"
brand: "noctua"
price: "€ 30.80"
currency: EUR
in_stock: true
reviews_count: 13
category: "Noctua"
url: https://www.desertcart.pt/products/71150027-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm
store_origin: PT
region: Portugal
---

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

**Brand:** noctua
**Price:** € 30.80
**Availability:** ✅ In Stock

## Summary

> 🌀 Stay cool, stay silent — the fan your tech deserves!

## Quick Answers

- **What is this?** NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm by noctua
- **How much does it cost?** € 30.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/71150027-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 for >150,000 hours MTTF with anti-vibration mounts for stable, long-term performance.
- • **Smart PWM Control:** 4-pin PWM ensures precise speed regulation for optimal cooling and energy efficiency.
- • **Compact Yet Mighty:** Slim 40x40x10mm design fits tight spaces while delivering up to 8.9 m³/h airflow.
- • **Whisper-Quiet Powerhouse:** Experience high airflow without the noise—only 19.6 dB(A) at full speed.
- • **Universal USB Compatibility:** Includes USB-A power adaptor for effortless plug-and-play with power banks and SBCs.

## Overview

The Noctua NF-A4x10 5V PWM is a premium 40mm high-performance fan designed for ultra-quiet, efficient cooling in compact electronics. Featuring a 5V 4-pin PWM interface with USB power adaptability, it delivers up to 5000 RPM and 8.9 m³/h airflow at just 19.6 dB(A). Its advanced acoustic optimization and durable build ensure reliable, vibration-free operation for over 150,000 hours, making it ideal for servers, SBCs, and tight spaces where silence and performance matter.

## 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: Good for SBC's - Use these on my small Orange/Raspberry PI SBC to keep then cool using the on board 5V rail and/or USB jacks. Quiet and moves the right amount of air.

## 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 | #87 in Computer Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 1,147 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

![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.

### ⭐⭐⭐⭐⭐ Good for SBC's
*by P***A on August 5, 2026*

Use these on my small Orange/Raspberry PI SBC to keep then cool using the on board 5V rail and/or USB jacks. Quiet and moves the right amount of air.

### ⭐⭐⭐⭐⭐ Noctua makes the BEST fans!!
*by B***M on December 28, 2025*

I've used Noctua fans in several home-build computers. Great quality and whisper quiet. This Noctua NF-A4x10 5V PWM comes with mounting hardware and USB adapter cable. Plug it in to any USB-A power source and it's on. Compact and quiet. Small size does not provide huge airflow. Yet perfect for quietly cooling small electronics. I have it on top of our cable modem which gets very hot without a fan.

## Frequently Bought Together

- Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown)
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**Shop now:** [https://www.desertcart.pt/products/71150027-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm](https://www.desertcart.pt/products/71150027-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-12*