---
product_id: 46683114
title: "NF-A4x20 5V"
brand: "noctua"
price: "SAR 104"
currency: SAR
in_stock: true
reviews_count: 13
category: "Noctua"
url: https://www.desertcart.com.sa/products/46683114-nf-a4x20-5v
store_origin: SA
region: Saudi Arabia
---

# >150,000 h MTTF for long-lasting reliability 5000 RPM high-speed airflow Ultra-quiet 14.9 dB(A) noise level NF-A4x20 5V

**Brand:** noctua
**Price:** SAR 104
**Availability:** ✅ In Stock

## Summary

> 🛠️ Small fan, big impact—cool smarter, not louder!

## Quick Answers

- **What is this?** NF-A4x20 5V by noctua
- **How much does it cost?** SAR 104 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/46683114-nf-a4x20-5v)

## 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 premium fibre-glass reinforced PBT and backed by a 6-year warranty for unmatched durability.
- • **Compact Powerhouse:** 40x40x20 mm size fits perfectly in tight 1U server racks and network gear without compromise.
- • **Whisper-Quiet Cooling:** Experience near-silent operation with advanced acoustic optimization—keep your workspace calm and focused.
- • **Plug & Play Versatility:** 5V 3-pin Molex connector plus OmniJoin adaptor set ensures seamless integration with industrial and custom setups.
- • **Vibration-Free Performance:** Includes anti-vibration mounts to eliminate noise and extend fan lifespan—because your gear deserves the best.

## Overview

The Noctua NF-A4x20 5V is a premium 40x40x20 mm quiet fan designed for 5V industrial and network applications. Delivering up to 5000 RPM airflow at an ultra-low noise level of 14.9 dB(A), it features award-winning aerodynamic design and advanced acoustic optimization. Equipped with anti-vibration mounts, a 3-pin Molex connector, and an OmniJoin adaptor set, it ensures easy installation and long-lasting performance with a >150,000 hour MTTF and a 6-year warranty.

## Description

Buy Noctua NF-A4x20 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x20mm, Brown): Case Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good airflow, quiet, omnijoin adapter is good, overkill box - 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: Quiet and works well. - Very quiet and works great for an NVIDIA K80.

## 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 | #412 in Computer Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.8 out of 5 stars 391 Reviews |
| Item Dimensions L x W x H | 1.57"L x 1.57"W x 0.79"H |
| Manufacturer | Noctua |
| Material Type | Fibre-glass reinforced PBT |
| Maximum Rotational Speed | 5000 RPM |
| Model | NF-A4x20 5V |
| Noise Level | 14.9 Decibels |
| Number of Items | 1 |
| Part Number | NF-A4x20 5V |
| Power Connector Type | 3-Pin |
| Product Dimensions | 1.57"L x 1.57"W x 0.79"H |
| UPC | 841500110123 |
| Unit Count | 1.0 Count |
| Voltage | 5 Volts |
| Warranty Description | 6 year manufacturer’s warranty |

## Product Details

- **Brand:** Noctua
- **Compatible Devices:** Desktop
- **Cooling Method:** Air
- **Material:** Fibre-glass reinforced PBT
- **Maximum Rotational Speed:** 5000 RPM
- **Noise Level:** 14.9 Decibels
- **Power Connector Type:** 3-Pin
- **Product Dimensions:** 1.57"L x 1.57"W x 0.79"H
- **UPC:** 841500110123
- **Voltage:** 5 Volts

## Images

![NF-A4x20 5V - Image 1](https://m.media-amazon.com/images/I/71lyRpVR4OL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good airflow, quiet, omnijoin adapter is good, overkill box
*by A***A on April 28, 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.

### ⭐⭐⭐⭐⭐ Quiet and works well.
*by R***Y on April 5, 2026*

Very quiet and works great for an NVIDIA K80.

### ⭐⭐⭐⭐⭐ Unbelievably quiet and efficient
*by S***D on July 8, 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.sa/products/46683114-nf-a4x20-5v](https://www.desertcart.com.sa/products/46683114-nf-a4x20-5v)

---

*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-07-05*