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NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown)\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eFeaturing advanced aerodynamic design measures such as Flow Acceleration\nChannels and Noctua’s AAO frame, the NF-A4x20 is a highly optimised, premium-\nquality quiet fan in size 40x20mm. The FLX version provides 5000\/4400\/3700rpm\nspeed settings via the supplied Low-Noise Adaptors and includes the OmniJoin™\nAdaptor Set for easy connection to proprietary fan headers. Its superb running\nsmoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality\nmake it an elite choice for the highest demands.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003ePremium quiet fan, 40x40x20 mm, 12V, 3-pin Molex, 5000\/4400\/3700 RPM, max. 14.9 dB(A), \u0026gt;150,000 h MTTF\u003c\/li\u003e\n \u003cli\u003eAward-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance\u003c\/li\u003e\n \u003cli\u003e40x20mm size ideal for 1U applications or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs\u003c\/li\u003e\n \u003cli\u003e3-pin FLX version provides 5000\/4400\/3700rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation\u003c\/li\u003e\n \u003cli\u003eIncludes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers\u003c\/li\u003e\n \u003c\/ul\u003e"}

Noctua NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown) 40x20mm 12 Volt

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Noctua NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown)

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 is a highly optimised, premium- quality quiet fan in size 40x20mm. The FLX version provides 5000/4400/3700rpm speed settings via the supplied Low-Noise Adaptors and includes the OmniJoin™ Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.

Product Features

  • Premium quiet fan, 40x40x20 mm, 12V, 3-pin Molex, 5000/4400/3700 RPM, max. 14.9 dB(A), >150,000 h MTTF
  • Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 40x20mm size ideal for 1U applications or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs
  • 3-pin FLX version provides 5000/4400/3700rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
  • Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers