---
product_id: 263809764
title: "Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown)"
brand: "noctua"
price: "2635137₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/263809764-noctua-nf-a4x20-5v-3-pin-premium-quiet-fan-40mm
store_origin: VN
region: Vietnam
---

# >150,000 hours MTTF reliability 5000 RPM high-speed airflow Ultra-quiet 14.9 dB(A) noise level Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown)

**Brand:** noctua
**Price:** 2635137₫
**Availability:** ✅ In Stock

## Summary

> 🌀 Small fan, big impact – cool your tech like a pro!

## Quick Answers

- **What is this?** Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) by noctua
- **How much does it cost?** 2635137₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/263809764-noctua-nf-a4x20-5v-3-pin-premium-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:** Over 150,000 hours mean this fan keeps your devices cool for years.
- • **Compact Yet Mighty:** 40x40x20 mm size fits perfectly in tight 1U spaces and network gear.
- • **Plug & Play Versatility:** 5V 3-pin Molex compatibility with included OmniJoin adaptor for seamless integration.
- • **Vibration-Free Operation:** Anti-vibration mounts ensure silent, stable performance in any setup.
- • **Whisper-Quiet Powerhouse:** Experience premium cooling with barely-there noise at just 14.9 dB(A).

## Overview

The Noctua NF-A4x20 5V is a premium 40mm quiet fan designed for 5V industrial and network applications. Delivering 5000 RPM airflow at an ultra-low noise level of 14.9 dB(A), it features award-winning aerodynamic design and advanced acoustic optimization. Its compact size fits perfectly in 1U servers, routers, NAS, and DVRs, while anti-vibration mounts and a comprehensive accessory kit ensure easy, silent installation and long-lasting reliability with over 150,000 hours MTTF.

## Description

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

## 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 |
| Are Batteries Included | No |
| Best Sellers Rank | #132,081 in Computers ( See Top 100 in Computers ) #1,234 in Computer Case Fans |
| Brand | Noctua |
| Customer Reviews | 4.7 4.7 out of 5 stars (371) |
| Date First Available | 1 August 2017 |
| Item Weight | 68 g |
| Item model number | NF-A4x20 5V |
| Manufacturer | Noctua |
| Product Dimensions | 4 x 2 x 4 cm; 68 g |
| Voltage | 5 Volts |

## Product Details

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

## Images

![Noctua NF-A4x20 5V, 3-Pin Premium Quiet Fan (40mm, Brown) - Image 1](https://m.media-amazon.com/images/I/71lyRpVR4OL.jpg)

## Available Options

This product comes in different **Size** options.

## 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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**Shop now:** [https://www.desertcart.vn/products/263809764-noctua-nf-a4x20-5v-3-pin-premium-quiet-fan-40mm](https://www.desertcart.vn/products/263809764-noctua-nf-a4x20-5v-3-pin-premium-quiet-fan-40mm)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-18*