Scan code: LN48026 Manufacturer code: NF-A4X10

Noctua NF-A4x10 FLX 40mm Fan

40mm Noctua NF-A4x10 FLX Low Noise Fan

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Scan code: LN48026 Manufacturer code: NF-A4X10
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Get it Tomorrow, 26 JulIn stock
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Delivery Options
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  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Frequently Bought Together
Product Overview

Noctua NF-A4x10 FLX 40mm Fan

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua's AAO frame, the NF-A4x10 FLX is a highly optimised, premium quality quiet fan in 40x10mm size. Smooth Commutation Drive technology and Noctua's reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, a Low-Noise Adaptor and OmniJoin Adaptor Set as well as six years manufacturer's warranty, the NF-A4x10 is a premium choice for the highest demands.


• 40 x 10mm quiet PC cooling fan
• Noise level from 12.9 dB(A)
• Feature packed
• Perfect for propitiatory cooling
Pack Information
Pack Type  
Individual Fan Specifications
Fan Diameter 40mm
Fan Depth 10 mm
Fan Speed 4500 rpm
Fan Blades  
Fan Specialization  
Airflow 4.8 CFM
Air Pressure  
Sound Level (dBA) 17.9 dBA
Sound Level (Sone)  
Motor Type  
Bearing Type  
Manual Speed Controller No
Material Plastic
Fan Colour  
LED Colour  
MTBF 150000 Hours
Fan Fixing  
Cable length  
Additional Information
Scan Code LN48026
Model Number NF-A4X10
GTIN 4716123314691

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
1 months
Manufacturer Contact Details
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40mm Noctua NF-A4x10 FLX Low Noise Fan is rated 4.8 out of 5 by 9.
Rated 5 out of 5 by from Replacement fan for a very noisy Swann NVR fan Fan fitted perfectly into the NVR case and the extra adaptor cable supplied with the fan enabled a direct connection to the NVR motherboard. The fan has excellent airflow and is almost silent. Definitely recommend.
Date published: 2019-12-14
Rated 4 out of 5 by from Small but effective Like all Noctua fans of this design its very effective at moving air quietly and well. The pressure of the air leaving the fan is quite low but it shifts a good bulk of air and our measurements show it is very effective at cooling.
Date published: 2018-07-10
Rated 4 out of 5 by from Not up to the usual standard Yes, all small fans are going to be noisy if they are to shift decent amounts of air - but I found these 40mm Noctuas to be no better than much cheaper fans when it came to noise levels. Build quality is up to the usual Noctua high standard.
Date published: 2017-11-18
Rated 5 out of 5 by from Used these to replace fans in Icy Dock MB994SP-4S Perfect! A little costly, but the fans in my Icy Dock MB994SP-4S were noisy from new, and got steadily worse over time. I have 3 of these Icy Dock units in my home server and the tower lives behind my TV, and the noise of the hum from the fans was far too intrusive. With these little Noctua's, my server is now silent again - so Wife Acceptance Factor is good here. There is hardly any noise emitted from my case, so whilst these units are a little costly, their quality and silence justifies the slightly higher than usual price. Another happy customer! Thanks Scan.
Date published: 2016-12-23
Rated 5 out of 5 by from Quiet for its size Audible at high speeds but no high-pitched wine. Great quality. If you need a 40mm fan this is the one to go for.
Date published: 2015-11-02
Rated 5 out of 5 by from quiet and cheap I use these fans in my 24 port switch. These fans made my switch a lot quieter than the stock fans. I barely hear my switch with them.
Date published: 2015-04-20
Rated 5 out of 5 by from Exceptional fan for premium builds Well, when it comes to case fans Noctua I believe are the undisputed top manufacturer. You pay for it certainly, but their fans are the pinnacle of quality. They have a high throughput of air volume, long life expectancy and are known for their silent operation. As usual this fan is extremely silent, even before using their speed reduction cables which all their fans come with. Near silent with the speed reduction cables. Comes with anti vibration mounting pins, speed reduction cables and obligatory installation manual. I quite like the brown colour scheme but I do sympathize that other who like colour schemes to better match their rigs. If you are on a tight budget I would suggest spending the premium markup for these elsewhere, but they are a near lifetime addition to your future rigs. However, it is a matter of choice to get the best with accessories to match and pay for it, or get slightly less out of a cheaper fan brand.
Date published: 2014-09-16
Rated 5 out of 5 by from Premium quality quiet fan ! The quality we all expect from a Noctua fan. Excellent fan, quiet and moves air well. Also comes with a cable extender and a 3 to 2 pin adapter (small form). Ideal to replace the fan in some STBs.
Date published: 2014-02-28
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Is this fan 5v or 12v?

I can see there is a 5v 40mm fan with the same spec, but this one does not say what the voltage is.
Asked by: labrat1268
This fan is 12 volt
Answered by: Scarface
Date published: 2020-02-13
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Noctua NF-A4x10 FLX 40mm Fan
Noctua NF-A4x10 FLX 40mm Fan