Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)
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Lars S.
Greater than one weekCoole Lüfter
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Martin (Stmk/AT)
> 3 dayDer Lüfter ist sehr gut verarbeitet. Es gibt jede Menge Zubehör in der Verpackung: Kabel, Adapter, Schrauben, ...
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Steve Rubik
> 3 daygood addon
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Mike St.
> 3 dayKlare Kaufempfehlung.
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UTA
> 3 dayExcellent small fan that we use to cool the chipset. Very quiet.
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Ricardo Robichaud
> 3 dayFor real there fans are amazing how much they dont make any noise its insane!
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MR JAMIE CARTER
02-04-2025Dont normally write reviews but hopefully this may help someone. Yes the fans are expensive but the quality is excellent and a 6 year guarantee gives some hope that I wont have to revisit this job for some time. I acquired a 48 port Netgear GS748TP Switch on eBay for a great price. The problem was it sounded like a Jet Fighter and was totally unusable for a home office environment. I saw sets of replacement fans from US sellers on eBay at a crazy price including shipping but wasnt sold on the potential build quality and/or reliability of these Chinese branded overpriced parts. Long story short, after coming up short researching fan requirements for my specific switch, I stripped back the switch and discovered 3x 4020 fans and 2x 4010 fans all running at 12v. Having read a few reports on other switches where people were having trouble getting the Noctua NF-A4x20 FLX fans to work, I decided to take the plunge and order 5x Noctua NF-A4x10 FLX fans. You have to change the pin wiring on these to match the Netgear Red|Blue|Black pin heading so this means changing the Noctua NF-A4x10 FLX fan headings from Black|Red|Yellow to Red|Yellow|Black. This is easy with a small flat headed screwdriver to unlatch them. Once done they spin up beautifully and the noise difference is night and day! Admittedly the airflow throughput isnt anywhere near what the is was with the original fans but this switch is never going to be stretched so for me the compromise to achieve something so quiet (not really audible from 2m away) is well worth it. NB: The only caveat to all this is that fan error warning light on the switch stays lit but this doesnt affect the fans running. If you can live with the additional light then this is a worthwhile mod for a home setup. Will definitely look to use Noctua fans on any future builds/upgrades.
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Angelo Niki
Greater than one weekSemplicemente, 15db più silenziosa della ventola stock Creality!
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Jason T
> 3 dayReplaced 3 fans in a HP switch. While it is still not silent I am happy to leave running 24/7 in guest bedroom closet. 3 of these fans push roughly the same amount of air as 1 of the HP fans did before. The switch manual said switch would only turn off if 2 fans failed at a time and my temperatures are only 5-7 degrees C hotter after running for 2 weeks and at least 15 degrees under max temperature so I am OK with this. Came with everything you would ever need to install a fan with. Ended up throwing away 80% of included kit but it had the connectors I needed and I would have been very frustrated if I had to order something extra to finish project after opening up the switch.
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C. Brink
> 3 dayFirst time buyer of Noctua. They are certainly the Mercedes Benz. The various connectors were helpful to make this fit in an odd application. Amazing quality
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 Drivetechnology and Noctua’s reference class SSO2 bearings ensure superb running smoothness and excellent long-term stability. Topped off with modular cabling and a Low-Noise Adaptor and OmniJoin Adaptor Set, the NF-A4x10 is a premium choice for the highest demands.
AAO frame
Noctua"s AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua"s proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan"s performance/noise efficiency.
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Flow Acceleration ChannelsThe NF-A4x10 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise. |
SSO2 BearingThe NF-A4x10 features the further optimised second generation of Noctua"s renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. |
Integrated Anti-Vibration PadsIntegrated Anti-Vibration Pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard mounting systems and fan clips used on heatsinks. |
Inner Surface MicrostructuresWith the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency. |
Reduced motor hub size
Thanks to its streamlined, compact motor design, the NF-A4x10"s motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10"s superior airflow and pressure performance.
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| NF-A4x10 PWM | NF-A4x10 FLX | NF-A4x10 5V PWM | NF-A4x10 5V | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin |
| Voltage | 12 V | 12 V | 5V | 5V |
| RPM | Max: 5000 / Min: 1000 | 4500 | Max: 5000 / Min: 1000 | 4500 |
| RPM with L.N.A. | 3700 | 3700 | - | - |
| Acoustical Noise | 19,6 dB(A) | 17,9 dB(A) | 19,6 dB(A) | 17,9 dB(A) |
| Acoustical Noise with L.N.A. | 12,9 dB(A) | 12,9 dB(A) | - | - |
| Size | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige |
