---
product_id: 735272421
title: "NF-A4x10 FLX"
brand: "noctua"
price: "₱2824"
currency: PHP
in_stock: false
reviews_count: 8
category: "Noctua"
url: https://www.desertcart.ph/products/735272421-nf-a4x10-flx
store_origin: PH
region: Philippines
---

# 12V 3-pin flexible power 4500 RPM max speed Ultra-quiet 17.9 dB noise level NF-A4x10 FLX

**Brand:** noctua
**Price:** ₱2824
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Small Fan, Big Impact: Quiet Power for the Modern Pro

## Quick Answers

- **What is this?** NF-A4x10 FLX by noctua
- **How much does it cost?** ₱2824 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/735272421-nf-a4x10-flx)

## 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:** Backed by a 6-year warranty and an impressive MTTF of over 150,000 hours, this fan is engineered for relentless, reliable cooling.
- • **Compact Powerhouse:** Ultra-slim 40x40x10 mm form factor fits seamlessly into tight spaces like 3D printers, NAS devices, and network gear without compromise.
- • **Whisper-Quiet Cooling:** Experience near-silent airflow with industry-leading 17.9 dB noise levels—perfect for focused workspaces and serene home offices.
- • **Precision Speed Control:** Dual-speed FLX design lets you toggle between 4500 RPM for max airflow or 3700 RPM for ultra-quiet operation, tailored to your environment.
- • **Vibration-Free Performance:** Includes anti-vibration mounts and OmniJoin adapters for effortless installation and rock-solid stability—no rattles, no distractions.

## Overview

The Noctua NF-A4x10 FLX is a premium 40x40x10 mm 12V 3-pin fan designed for ultra-quiet, high-performance cooling. With adjustable speeds up to 4500 RPM, advanced acoustic optimization, and anti-vibration features, it’s ideal for compact devices like 3D printers, NAS, and network equipment. Engineered for longevity with a 6-year warranty and over 150,000 hours MTTF, it delivers reliable airflow with minimal noise, making it the go-to choice for professionals demanding silent efficiency.

## Description

desertcart.co.jp: Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin Connection (40x10mm, Brown) : Industrial & Scientific

Review: アイネックスの5Vケーブルでも正常動作確認 - このファン自体は12Vだが5Vケーブルでも1500rpmで動作しました。 1500rpmだと微風ですが全くの無音。 半値で変える静音ファンもありますが3300rpmと高速なので5V駆動でき無音な理想的なファンでした。
Review: 使える - 使える！しかも煩くないが高い

## Features

- Premium Quiet Fan, Size 40x40x10 mm, Voltage 12V, Connector 3-pin Molex, Rotation Speed 4500/3700 RPM, Noise Level Up to 17.9 dB(A), MTTF (Average Life)>150,000h
- Award-winning A-series design: Noctua's Flow Acceleration Channels (Flow Acceleration Channels) and AAO (Advanced Acoustic Optimisation) frames deliver excellent, quiet cooling performance
- Perfect replacement for any 12V 4cm fan with high noise level or broken fan such as 3D printers, DVRs, NAS, switches, routers, and other network and storage devices
- The 3PIN 12V FLX version allows you to set the speed at 4500 or 3700 rpm with the included low noise adapter, allowing you to adjust the fan for maximum airflow or quiet operation
- Includes anti-vibration mounts, fan screws, low noise adapters, extension cables, and a set of OmniJoin adapters to connect to your own fan header

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009NQLT0M |
| Air Flow Capacity | 8.2 Cubic Meters Per Hour |
| Amazon Bestseller | #62,866 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #151 in Electronic Cooling Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Customer Reviews | 4.8 out of 5 stars 10,953 Your Review |
| Global Trade Identification Number | 04716123314691, 07123290462549, 07133363436841 |
| Item Dimensions L x W x H | 40L x 40W x 10H mm |
| Item Weight | 50 Grams |
| Manufacturer | Noctua |
| Material Type | Fiberglass reinforced PBT |
| Maximum Rotational Speed | 4500 RPM |
| Noise Level | 17.9 Decibels |
| Power Connector Type | 3-Pin |
| Product Dimensions | 40L x 40W x 10H mm |
| UPC | 163121136772 809185325669 806291857176 804066543873 842431014054 102930672934 782386476753 172302657890 132017920719 808111662861 809385174852 168141421648 851905102548 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Warranty Description | 6 year warranty |

## Product Details

- **Product Dimensions:** 40L x 40W x 10H mm
- **Brand:** Noctua
- **Power Connector Type:** 3-Pin
- **Voltage:** 12 Volts
- **Cooling Method:** Air
- **Compatible Devices:** Desktop
- **Noise Level:** 17.9 Decibels
- **Material:** Fiberglass reinforced PBT
- **Maximum Rotational Speed:** 4500 RPM
- **Air Flow Capacity:** 8.2 Cubic Meters Per Hour

## Images

![NF-A4x10 FLX - Image 1](https://m.media-amazon.com/images/I/81ud+v9ghlL.jpg)
![NF-A4x10 FLX - Image 2](https://m.media-amazon.com/images/I/81pLnZYn2oL.jpg)
![NF-A4x10 FLX - Image 3](https://m.media-amazon.com/images/I/91q4VBG-wuL.jpg)
![NF-A4x10 FLX - Image 4](https://m.media-amazon.com/images/I/91Q8zLVOqyL.jpg)
![NF-A4x10 FLX - Image 5](https://m.media-amazon.com/images/I/71at786W2SL.jpg)

## Questions & Answers

**Q: what is the CFM for this fan?**
A: 5

**Q: This might be a dumb question, but what is the operating voltage?  Don't see a rating anywhere in the description or reviews and hoping it's 12VDC.**
A: 12 volts DC. 3 pin connector but comes with a 2 pin adapter and extension cables.

**Q: Have anyone used this to replace the 35 mm assist fans on an asus sabertooth z87?**
A: I have it in my Asus Sabertooth Z170 S and it fits just fine! (just remove the two Anti-Vibration Pads in contact with the TUF Armor to be able to close the lid).
Take into consideration that in my version of the Sabertooth, the assistant fan position is vertical, inside the TUF Thermal Armor, between the IO Shield and the heatsink VRM, and works as an intake fan, to blow fresh air into the motherboard. 
Every Sabertooth Assistant Fans are designed to work differently. I believe in your motherboard the fan is place horizontally, on Top of the TUF Thermal Armor. 
Also the fans needed for your Sabertooth Z87 had a mini 3 pin connector, my motherboard use 3 or 4 pin (regular size) connectors. Therefore the original assistant fan of the Sabertooth Z87 cannot be plugged in the Assist Fan 1 connector of my Sabertooth Z170 S. I know this because I was looking for the fans for my motherboard and buy the Z87 version by mistake, couldn't use it, so I buy the 40mm Noctua, and it works great! Really improved the temperature inside my case. Also my motherboard use 40mm fans. I'm not sure of the Z87 assistant fans size, but putting the two of them together, are exactly the same size, only thing adding up to the size variation, are the Noctuas silicone anti vibrations pads, that can be removed.
Hope this helps even a little bit.

**Q: What is the sound decible rating**
A: http://noctua.at/en/products/fan/nf-a4x10-flx/specification

17.9

## Customer Reviews

### ⭐⭐⭐⭐⭐ アイネックスの5Vケーブルでも正常動作確認
*by T***E on March 31, 2023*

このファン自体は12Vだが5Vケーブルでも1500rpmで動作しました。 1500rpmだと微風ですが全くの無音。 半値で変える静音ファンもありますが3300rpmと高速なので5V駆動でき無音な理想的なファンでした。

### ⭐⭐⭐⭐⭐ 使える
*by D***I on January 6, 2026*

使える！しかも煩くないが高い

### ⭐⭐⭐⭐⭐ 真横で寝られるくらいの静かさになります。
*by T***S on September 30, 2019*

3Dプリンタ（i3 mega）のステッピングモータードライバとホットエンドを冷却するファンがうるさいので、静音化のために購入しました。あまりにも静かなので本当に回ってるのかと疑ってしまいました。 交換する前は、うるさくて2階に置いてあるのに1階でも聞こえるくらいの音でしたが、交換後は真横で寝られるくらいの音になりました。 コネクタピンが合わなくても、既存ファンのコードを切断してピンを使えるように、UYコネクタも同梱されててありがたいです。 他のファンよりも高めですが、かなりおすすめです。

## Frequently Bought Together

- Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)
- Noctua NF-A6x25 FLX, Premium Quiet Fan, 3-Pin (60mm, Brown)
- Noctua NF-A4x20 FLX Computer Case Fan - Cooling Components (Computer Case, Fan, 4 cm, 3700 RPM, 5000 RPM, 4400 RPM)

---

## 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.ph/products/735272421-nf-a4x10-flx](https://www.desertcart.ph/products/735272421-nf-a4x10-flx)

---

*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-04-01*