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

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Reviews
  • Wildman Schu

    > 24 hour

    I am not surprised that this little fan is virtually silent, it is a Noctua after all.

  • Mark Garety

    > 24 hour

    Amazing fan. This thing is super quiet. I bought it to replace a 40mm fan in my 3D printer, and I couldnt even tell this thing was spinning when I powered it up the first time. I thought something was wrong, but it was working just fine. Thats how quiet this is. With my old fan, the fan noise was the primary sound you heard when the 3D printer was running. This fan makes my stepper motors seem extra loud, but in reality Im just taking the constant fan drone out of the picture.

  • Gerald Brown

    > 24 hour

    Extremely impressed with the quality. In the future any fans I need Ill be buying noctua.

  • Antonino Raffone

    > 24 hour

    Bella e silenziosissima. Ma spinge anche poco.

  • Brendan DENIAUD

    > 24 hour

    Acheté pour remplacer un ventilateur de diffuseur dhuile défaillant.

  • Chris O

    > 24 hour

    I bought 2 and used them to replace the stock noisy fans on my Ender 3 Pro 3d Printer.

  • Diego V.

    > 24 hour

    Ventola efficiente e silenziosa.....certo visto le dimensioni costa un po, ma va veramente bene ed è ricca di dotazioni per ogni tipo di utilizzo

  • B. Martin

    > 24 hour

    One of the fans on my Wanhao i3 Dup crapped out on me so I had one of these laying around from an old pc I no longer used. I replaced the fan and was so impressed I just ordered 2 more to replace all the fans to make the unit a lot more silent! Great fans great buy!

  • Martin (Stmk/AT)

    > 24 hour

    Der Lüfter ist sehr gut verarbeitet. Es gibt jede Menge Zubehör in der Verpackung: Kabel, Adapter, Schrauben, ...

  • Andreas R.

    > 24 hour

    Ich habe mit diesen Lüftern in mehreren Switches eines namhaften Hersteller den ohrenbetäubenden Lärm beendet, der da veranstaltet wurde. Die Dinger sind wirklich so leise, das ich 2 mal hinhören musste, ob die überhaupt laufen. Lieferumfang mit allerelei Zubehör und Steckern, und Adaptern und sonst was....Vollausstattung sozusagen. Absolut klare Kaufempfehlung

NF-A4x10 FLX headerNF-A4x10 FLX header

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.

5V PWM version5V PWM version

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.

NF-A4x10 FACNF-A4x10 FAC

SSO2SSO2

NF-A4x10 AVPNF-A4x10 AVP

NF-A4x10 ISMNF-A4x10 ISM

Flow Acceleration Channels

The 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 Bearing

The 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 Pads

Integrated 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 Microstructures

With 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.

NF-A4x10 bannerNF-A4x10 banner

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.

NF-A4x10 PWM table NF-A4x10 FLX table NF-A4x10 5V PWM table NF-A4x10 5V table
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

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