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Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)

Ships from United States.

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  • Premium quiet fan, 40x40x10 mm, 12V, 3-pin Molex, 4500/3700 RPM, max. 17.9 dB(A), >150,000 h MTTF
  • Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • Ideal replacement for noisy or broken 12V 4cm fans in 3D printers, DVRs, NAS, switches, routers, other network and storage devices, etc.
  • 3-pin 12V FLX version can be run 4500 or 3700 rpm using the supplied Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
  • Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

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 6 years manufacturer’s warranty, the NF-A4x10 is a premium choice for the highest demands.


Learn more about the Noctua NF-A4x10

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great Product! Adds much needed airflow to my SG13 build! 7/13/2020 5:37:54 AM

Pros: Since I'm using an ATX sized, non-Modular PSU in the SG13 (Seasonic S12II 520W), I'm using it with the fan facing down so the PSU acts as an exhaust. I replaced the PSU fan with a Cooler Master fan, which is powered externally via molex.

This is where these babies come into play. I placed one of these inside the PSU, zip-tying them to the mesh backside of the PSU acting as an exhaust. This way, the Cooler Master fan and this A4X10 fan efficiently direct the flow of any heat out back out of the SG13.

I placed the second one I bought by the side vent beside the CPU cooler, acting as intake. I'd say the whole thing dropped my temps by about 3-5 degrees Celsius.

Overall Review: If you can fit one of these inside your case and you have the money to spare, I'd say go for it! They're great!

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great fan! 6/25/2020 5:26:43 PM

Pros: Quiet
Great build quality
Lots of adapters and connectors

Overall Review: I got this fan to cool a LSI MegaRAID LSI00330 (9271-8i) by attaching it to the heatsink. It keeps the card at about 50C which is perfect since it runs extremely hot without a fan. Really impressed by the build quality and how many connectors and adapters it came with.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
High quality product 3/29/2020 5:16:24 PM

Pros: QUIET!

Cons: None

Overall Review: This was a replacement for the factory fan on my Kenwood TM-V71A transceiver. The original fan was very loud and this was the recommended replacement. Even though I had to modify the connector for this application, the fan comes with several adapters for standard installation.

Follow up... After using this fan for three months it continues to function flawlessly. I can hardly hear it running. Great product!

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
4/ 5
Fan works fine as optional cooling for VRM's on ASUS motherboard 11/29/2019 4:24:09 PM

Pros: No real noise. This was a special requirement for an optional 40mm fan to be attached to an Asus Prime Z370A motherboard with a bracket they provided to cool the VRM's in a build using an unlocked i7-8700K CPU editing workstation. It has been working since early 2018 and now it is Nov. 2019. The PC runs 24/7.

Cons: None really.

Overall Review: Great little ASUS Mobo option for cooling VRMS. It would take any 40mm fan but I chose Noctua for reliability.

2 out of 2 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
FIts My ASUS TUF Z270 Mark 1 motherboard perfectly 7/30/2019 6:28:52 PM

Pros: Fits in the thermal airflow fan position perfectly on my ASUS TUF Z270 Mark 1 motherboard.
Seems to be fairly quiet and move a decent amount of air for a small fan.

Cons: None so far

Overall Review: Highly recommended if you have a similar application for this size fan.

2 out of 2 people found this review helpful. Did you?
Anonymous
Ownership: 1 day to 1 week
Verified Owner
5/ 5
SIlent 7/11/2019 7:41:45 PM

Pros: 1) virtually silent
2) provided plenty of connecting options
3) less power consumption than creality 3D printer stock fan

Overall Review: Used this to replace my 3D printer's hotend fan, and made a huge difference with dampening the noise. Cannot say about longevity since I have only been running for a couple of hours. I will update if possible. For Creality 3D printer CR-10, you have to cut off the old fan, and solder the new fan onto the existing wire. Protip: before connecting the new fan wires, insert a shrinking tube to insulate the open wire after finishing the installation.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Silent, well-built. 7/2/2019 12:19:35 PM

Pros: Whisper quiet.
Tons of extras included.

Cons: Low airflow (but you expect that with a 40mm silent fan).
Too many extras actually feels wasteful???

1 out of 1 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
I advise to purchase 4/26/2019 12:52:30 PM

Pros: Bought for a small power supply. I didn’t quite guess the size, but I still found a solution to install it. Good item
The kit has all the necessary prehodniki and gum.

Cons: does not have

Overall Review: Twist the size accuracy of the rotator

1 out of 1 people found this review helpful. Did you?
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