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💨 Small fan, big chill — cool your rig without the noise!
The Noctua NF-A4X10 FLX is a premium 40x40x10mm case fan engineered for high airflow (8.2 m³/h) at ultra-low noise levels (17.9 dB). Featuring advanced Flow Acceleration Channels, a compact motor hub for increased blade area, and vibration-dampening silicone pads, it delivers efficient, whisper-quiet cooling. With a max speed of 4500 RPM and SSO2 bearing technology, this fan ensures long-lasting, stable performance. Its modular cabling and adaptors provide versatile installation options, making it the go-to choice for professionals seeking discreet yet powerful cooling solutions.








| ASIN | B009NQLT0M |
| Air Flow Capacity | 8.2 Cubic Meters Per Hour |
| Best Sellers Rank | #93,097 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #464 in Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Fan |
| Country of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 11,043 Reviews |
| Global Trade Identification Number | 04716123314691, 07123290462549, 07133363436841 |
| Importer Contact Information | Acro Engineering Company, Z-41, Sanjay Colony II, Pocket Y, Sanjay Colony, Okhla Phase II, Okhla Industrial Estate, New Delhi, Delhi 110020 |
| Included Components | Case Fan |
| Item Dimensions L x W x H | 40L x 10W x 40H Millimeters |
| Item Type Name | Case Fan |
| Item Weight | 50 Grams |
| Manufacturer | Noctua, Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria |
| Manufacturer Contact Information | Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria |
| Material Type | Fibre-glass reinforced PBT |
| Max Rotational Speed | 4500 RPM |
| Model Number | NF-A4x10 |
| Noise Level | 17.9 Decibels |
| Number of Items | 1 |
| Packer Contact Information | Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria |
| Part Number | NF-A4x10 |
| Power Connector Type | 3-Pin |
| Product Dimensions | 40L x 10W x 40H Millimeters |
| UPC | 163121136772 809185325669 806291857176 804066543873 842431014054 102930672934 782386476753 172302657890 132017920719 808111662861 809385174852 168141421648 851905102548 |
| Unit Count | 1 Count |
| Voltage | 12 Volts |
| Warranty Description | 6 year manufacturer |
A**A
Works as expected
I have used it for a few years now and it works fine, as expected. I occasionally brush off the dirt. Used it to: - cool the GPU - cool the NVMe drive heatsink Wasn't as good as the 80mm intel fan for the GPU (note that I am comparing 40mm to 80mm), so the performance is nothing exceptional, but it is much quieter for a 400mm fan.
T**R
Great product
The product is awesome and works very seamlessly. And the cooling effect is great.
P**R
Nice and silent
Works Great, meets by expectations and I'd recommend this to anyone in need for a quiet and powerful 40mmx10mm Fan.
V**M
Jabardast!
Great...comes with lots of accessories that you will ever see with any fan...its well engineered product! Yes a bit costly but its simply one of best fan i ever used.
H**S
Noctua is finally affordable in India now
Bought the 40mm version for my car inverter and the noise level and pitch difference was night and day the stock fan was extremely whinny and very loud it used to distract my driving but this noctua fan just makes a pleasant whoosh sound and zero whine which perfectly blends in with my car AC they were also kind enough to include a ton of adapters that let you connect this fan to anything other than PCs Impressed by its performance I am gonna noctua everything my pc and chill
J**S
Made my NVR quieter
I installed this Noctua fan in my Reolink RLN16-410 NVR. It did help to lower the noise from the NVR but not a huge amount. I took 10 sound measurements before and after the Noctua fan upgrade. Min and max recorded values were as follows: With original fan: 45.1 - 46.0 dB With Noctua fan: 43.8 - 45.5 dB These NVRs actually run much quieter with the top case removed, so I also took 10 before and after measurements with the case removed: With original fan, case removed: 41.0 - 42.6 dB With Noctua fan, case removed: 38.5 - 40.0 dB These days I'm running the NVR inside a closed cupboard with the Noctua fan installed and the top case removed and I can only just barely hear the running NVR through the closed (internal wooden) door. I think the lingering noise is actually harddrive noise, not fan noise. Hot tip: I previously also applied weather stripping around the door frame which helped a lot to reduce noise leak through the cupboard door.
K**T
Perfekt!
Fungerar precis som utlovat. Knäpp tyst liten fläkt som flyttar förvånandsvärt mycket luft.
I**T
Ventilator
Deze ventilator is de beste in zijn soort super goed
I**F
Great fan kit for LSI HBA host bus adaptor
Installed this on an LSI Logic SAS 9207-8i Storage Controller. Perfect fit on top of the heat sync with a couple self taping fasteners. Installing this fan plus repasting the heat sink dropped temps from 180F to 90F. Very quiet even at full speed. This is a 3 pin connector so no PWM, but that's fine as this is very quiet and performs well. This Noctua comes as an entire kit with good cable length plus an extender cable and other accessories. Good value for the money and highly recommended.
I**5
Ventilateur excellent et silencieux
Excellent ventilateur, fidèle à la réputation de Noctua. L’installation est simple et tous les accessoires nécessaires sont inclus. Le niveau sonore est extrêmement faible, même à pleine vitesse, tout en offrant un excellent refroidissement. La qualité de fabrication est remarquable et inspire confiance pour une utilisation à long terme. Une solution idéale pour améliorer le refroidissement d’un PC sans augmenter le bruit. Je recommande vivement. Installé sur le nvr reolink
Trustpilot
2 weeks ago
2 months ago