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Case Fan

Noctua - NF-A4x10 4.8 CFM 40mm Fan

( 5.0 Average / 6 Ratings )




Part #






Air Flow

3.9 - 4.8 CFM

Noise Level

12.9 - 17.9 dbA


3700 - 4500 RPM

Bearing Type



Flow Acceleration Channels
Reduced Motor Hub Size
AAO Frame
Stepped Inlet Design
Inner Surface Microstructures
Integrated Anti-Vibration Pads
Smooth Commutation Drive 2
Low-Noise Adaptor for full flexibility
3 to 2-pin Adaptor and Polarity Protection
OmniJoin Adaptor Set

Completed Builds Using This Part

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Merchant Base Promo Shipping Tax Availability Total
CCL Computers £12.65 +£2.99 s/h In stock £15.64
Scan.co.uk £11.99 +£5.48 s/h In stock £17.47

Price History (Excluding Tax) History:


The.Geeked. 27 points 24 months ago
from completed build "Black Cherry" - 1st Build

Very powerful fan for its size! using it to keep my Samsung SM951 128GB cool.

ElectricSheepsDream 17 points 5 months ago

My mobo (Asus Tuf Mark 1 Z270) has a little slot in its "thermal armor" under a removable cover for installation of a 40mm fan... From my modest research it doesn't seem to make much of a difference (maybe 1-2 degrees Celsius under high load, and the evidence was mostly anecdotal), but I couldn't just leave that slot empty! Plus, I always wanted to tell at dinner parties about having a 40mm fan installed into my motherboard armor (just kidding, I don't do dinner parties).

Sorry for the long story. This particular fan is of a high quality. I read about people running it for years non-stop doing minor cooling jobs. It's quiet and it's a very cute little guy! Just looking at the specs I couldn't find anything better for my needs but we all know that fans' specs have to be taken with a grain of salt. Noctua's reputation in that regard though hasn't been challenged yet, to the best of my knowledge. So I trust it moves few CFMs just fine and maybe even cools something while at it XD I named mine Quincy as I feel that this is a very special mighty little fan. A little fan that could.

Have to mention that the packaging was impressive. Contrasts highly with a simple crappy box my Intel CPU came in.

P.S. When installing the fan under the motherboard armor I had to use regular screws that came with the case, as the supplied fan screws seemed to be too large.