---
product_id: 49541544
title: "NF-A9 FLX"
brand: "noctua"
price: "¥8153"
currency: JPY
in_stock: null
reviews_count: 13
category: "Noctua"
url: https://www.desertcart.jp/products/49541544-nf-a9-flx
store_origin: JP
region: Japan
---

# 12V, 0.07A power 64.6 m³/h airflow max 17.1 dB(A) noise NF-A9 FLX

**Brand:** noctua
**Price:** ¥8153
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Upgrade your airflow game with the Noctua NF-A9 FLX — where silence meets power.

## Quick Answers

- **What is this?** NF-A9 FLX by noctua
- **How much does it cost?** ¥8153 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/49541544-nf-a9-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

- • **Compact Powerhouse:** Perfectly sized 92x92x25mm fan fits seamlessly in compact PCs, NAS, and HTPC setups.
- • **Whisper-Quiet Cooling:** Experience near-silent airflow with advanced acoustic optimization and ultra-low noise adaptors.
- • **Plug & Play Versatility:** Comes with 3-pin Molex, extension cable, and 3:4-pin adaptor for easy integration into any build.
- • **Precision Speed Control:** Three RPM settings (1600/1250/1050) let you fine-tune performance for max airflow or stealth mode.
- • **Vibration-Free Operation:** Includes anti-vibration mounts for smooth, rattle-free performance that keeps your workspace serene.

## Overview

The Noctua NF-A9 FLX is a premium 92mm 3-pin fan engineered for ultra-quiet, efficient cooling. Featuring advanced acoustic optimization, flow acceleration channels, and three adjustable speed settings, it delivers up to 64.6 m³/h airflow at a whisper-quiet 17.1 dB(A). Designed for compact PCs, NAS devices, and CPU coolers, it includes anti-vibration mounts and multiple adapters for versatile, hassle-free installation.

## Description

Premium 92mm fan with advanced acoustic optimization and flow acceleration channels for superior quiet cooling. Ideal for CPU coolers, compact PCs, and other devices.

Review: Works with Synology DS220+ But Only On Maximum - Need To Use Included Attenuator Cable - I replaced a Synology DS119 with a DS220+ The DS119 was VERY quiet. In comparison the DS220+ is noticeably louder. I'm using with SSDs so the only sound is the fan. So I replaced it with the excellent Noctua NF-A9 FLX fan which is a real premium quality fan. However on the default quiet fan mode setting in the DS220+ control panel the fan struggled to work. It would start off fine but eventually just stop moving. This was true in the medium fan speed setting on the DS220+ However in the maximum fan speed setting it worked fine but was much noiser than the original fan set up! The Noctua fan comes with two speed attenuator cables: Low-Noise Adaptor (L.N.A.) Ultra-Low-Noise Adaptor (U.L.N.A.) I tried it with the low noise cable and it worked fine and was quieter. I tried the Ultra low noise cable and that worked too and was super quiet. I stuck with the ultra low noise cable and the DS220+ has been running for a day now with no fan issues and the temperature inside the case is nice and cool. Varies between 30 and 39 degrees. In terms of noise the set up is marginally quieter than the Synology fan. The Synology fan had a very minor rattle. The Noctua is super smooth with no rattle. Its not silent but its pretty quiet.
Review: Finally solved my synology DS218 "fan stopped" error - I had been experiencing an episodic (and erroneous) fan error on my DS218 which was only solvable by setting the fan to max speed, a solution which was unacceptable due to the noise it created. I replaced initially with another generic fan but the error recurred so took a gamble on replacing again with this more expensive fan. Happy to say it has solved the issue completely. This is clearly a premium product and comes with a number of leads and much better construction quality. I installed with the supplied ultra low noise adaptor (which slows the fan down) but put the synology DSM setting on full fan speed. I have had no error messages on the synology in the 48 hours since install (I was getting them hourly previously) and the fan is pretty much silent. Its also doing a good job at keeping my drives cool at 30c.

## Features

- Premium quiet fan, 92x92x25 mm, 12V, 3-pin Molex, 1600/1250/1050 RPM, max. 17.1 dB(A), >150,000 h MTTF
- Award-winning 92x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- Ideal for 9cm CPU coolers (e.g. Noctua NH-U9(S) & NH-D9L series), compact PC cases (HTPC, ITX, Small Form Factor), replacement fan for NAS and other devices, etc.
- 3-pin FLX version provides 1600/1250/1050rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
- Includes anti-vibration mounts, fan screws, Low-Noise & Ultra-Low-Noise Adaptors, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NEMG9B0 |
| Air Flow Capacity | 64.6 Cubic Metres Per Hour |
| Amperage Capacity | 0.07 Amps |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 5,475 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 65 in Thermal Management Products 120 in Fans & Cooling |
| Colour | Brown |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,261) |
| Date First Available | 8 Sept. 2014 |
| Included components | 92mm Fan/s |
| Item Package Quantity | 1 |
| Item Weight | 230 g |
| Item model number | NF-A9FLX |
| Manufacturer | Noctua |
| Material | Fibre-glass reinforced PBT |
| Noise Level | 17.1 Decibels |
| Part number | NF-A9 FLX |
| Product Dimensions | 2.49 x 9.19 x 9.19 cm; 230 g |
| Size | 92x92x25mm |
| Style | single |
| Voltage | 12 Volts |

## Product Details

- **Air flow capacity:** 64.6 Cubic Metres Per Hour
- **Brand:** Noctua
- **Compatible devices:** Desktop
- **Cooling method:** Air
- **Material:** Fibre-glass reinforced PBT
- **Maximum rotational speed:** 1600 RPM
- **Noise level:** 17.1 Decibels
- **Power connector type:** 3-Pin
- **Product dimensions:** 9.2L x 9.2W x 2.5H centimetres
- **Voltage:** 12 Volts

## Images

![NF-A9 FLX - Image 1](https://m.media-amazon.com/images/I/81YGnt3WkSL.jpg)

## Questions & Answers

**Q: Is this static or air flow optimised**
A: This is a good allround-fan. The fan offers enough airflow for a good case ventilation, if you want to use it on a heatsink for CPU cooling we recommend to use the PWM version of this fan, as the PWM version offers a bigger airflow range than the FLX version.https://www.amazon.co.uk/noctua-NF-A9-PWM-Noctua/dp/B00NEMG5F0/ref=sr_1_1?s=computers&ie=UTF8&qid=1467637305&sr=1-1&keywords=a9+pwm

**Q: When measuring an existing fan for replacement  I assume the measurements are the outer dimension of the housing - not the inner size of the fan vent**
A: Yes it's corner to corner over a straight edge meaning not diagonal of the outer of the fan frame

**Q: Will this work with Synology DS218+**
A: I bought two to use with my DS1618+ but found that isolating the original fans from the case with thin rubber washers made them quiet enough that I didn't need the NF-A9s. I used https://www.amazon.co.uk/gp/product/B00DGQJ7YU/ref=ox_sc_act_title_1?smid=AEVAPPAP9N5YH&psc=1 - a cheaper option as you get loads of them.

**Q: Obscure question for you: could this replace the stock psu fan in a vintage apple performa 6500?**
A: no, sorry!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with Synology DS220+ But Only On Maximum - Need To Use Included Attenuator Cable
*by P***L on 8 July 2021*

I replaced a Synology DS119 with a DS220+ The DS119 was VERY quiet. In comparison the DS220+ is noticeably louder. I'm using with SSDs so the only sound is the fan. So I replaced it with the excellent Noctua NF-A9 FLX fan which is a real premium quality fan. However on the default quiet fan mode setting in the DS220+ control panel the fan struggled to work. It would start off fine but eventually just stop moving. This was true in the medium fan speed setting on the DS220+ However in the maximum fan speed setting it worked fine but was much noiser than the original fan set up! The Noctua fan comes with two speed attenuator cables: Low-Noise Adaptor (L.N.A.) Ultra-Low-Noise Adaptor (U.L.N.A.) I tried it with the low noise cable and it worked fine and was quieter. I tried the Ultra low noise cable and that worked too and was super quiet. I stuck with the ultra low noise cable and the DS220+ has been running for a day now with no fan issues and the temperature inside the case is nice and cool. Varies between 30 and 39 degrees. In terms of noise the set up is marginally quieter than the Synology fan. The Synology fan had a very minor rattle. The Noctua is super smooth with no rattle. Its not silent but its pretty quiet.

### ⭐⭐⭐⭐⭐ Finally solved my synology DS218 "fan stopped" error
*by M***N on 10 September 2022*

I had been experiencing an episodic (and erroneous) fan error on my DS218 which was only solvable by setting the fan to max speed, a solution which was unacceptable due to the noise it created. I replaced initially with another generic fan but the error recurred so took a gamble on replacing again with this more expensive fan. Happy to say it has solved the issue completely. This is clearly a premium product and comes with a number of leads and much better construction quality. I installed with the supplied ultra low noise adaptor (which slows the fan down) but put the synology DSM setting on full fan speed. I have had no error messages on the synology in the 48 hours since install (I was getting them hourly previously) and the fan is pretty much silent. Its also doing a good job at keeping my drives cool at 30c.

### ⭐⭐⭐⭐⭐ Great little fan
*by T***Y on 10 September 2017*

I purchased this Noctua NF-A9 FLX fan for my Synology DS215j NAS to replace the installed fan which had developed a noise. Even when this NAS is in sleep mode the fan still runs so it was becoming quite noticeable in a quiet room. I've purchased a few Noctua fans in the past and they are great quality products. This fan came with a nice selection of accessories, including some low noise adaptors, a 4 pin molex to 3 pin power adapter, a 30cm extension cable and some anti-vibration silicone mounts. I didn't need any of the extra accessories but it's a nice bonus and will make useful spares. After fitting the fan into the NAS it's nearly silent now - I would go as far as to say it is quieter than it was from new! I can feel the air being pushed out the back so even though it's very quiet it's still providing excellent air flow. This fan comes with a 6 year warranty which goes to show how much confidence Noctua have in their products. The colour scheme is definitely not to everyone's tastes but as this fan is inside the NAS and not on show it's not a problem. Highly recommended.

## Frequently Bought Together

- Noctua NF-A9 FLX, Premium Quiet Fan, 3-Pin (92mm, Brown)
- Noctua NF-A8 PWM, Premium Quiet Fan, 4-Pin (80mm, Brown)
- Noctua NF-A8 FLX, Premium Quiet Fan, 3-Pin (80mm, Brown)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*