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Brown square 140mm case fan with 25mm thick frame and 3-pin connector

Noctua

Noctua NF-A14 FLX 140mm 3-Pin Case Fan Brown

SKU CH-VEC9-C5J35 MPN NF-A14 FLX

Premium quiet 140mm case fan with three speed settings via low-noise adaptors for radiators or chassis cooling

  • Fan Counts1 Fan
  • Fan ControllerNo Controller
  • TypeCase Fan
  • CompatibilityCPU Cooler, Water-Cooling Radiator and Case
  • Fan Size140mm
  • Fan Thickness25mm

Model FLX

Les versions barrées existent, mais ne sont pas disponibles ici.

  • 140mm square frame fits radiators and cases perfectly
  • SSO2 bearing with metal shell ensures >150,000h MTTF reliability
  • Three speed settings via L.N.A. and U.L.N.A. adaptors
  • Airflow up to 115.5 m³/h at 19.2 dB(A)
  • Anti-vibration pads and stepped inlet reduce turbulence noise

140mm square frame quiet fan

The Noctua NF-A14 FLX is a 140mm case fan with a square frame designed for water-cooling radiators and chassis ventilation. It uses an SSO2 bearing and advanced aerodynamic features to deliver premium quiet cooling performance. The 3-pin connector provides broad compatibility with motherboards and power supplies.

Builders needing 140mm radiator or case cooling

This fan suits builders who want a single 140mm fan for radiator or case use with three selectable speed settings via the included adaptors. It is not for systems that require PWM speed control or fans with integrated RGB lighting.

3-pin connector with three fixed speed options

The FLX version ships with Low-Noise and Ultra-Low-Noise adaptors that set the fan to 1200, 1050 or 900 RPM without motherboard PWM control. Maximum airflow reaches 115.5 m3/h at 19.2 dB(A), while the ultra-low setting drops to 13.8 dB(A) at 88.7 m3/h.

Points forts

  • 140mm square frame fits radiators and cases perfectly
  • SSO2 bearing with metal shell ensures >150,000h MTTF reliability
  • Three speed settings via L.N.A. and U.L.N.A. adaptors
  • Airflow up to 115.5 m³/h at 19.2 dB(A)
  • Anti-vibration pads and stepped inlet reduce turbulence noise

Caractéristiques

BrandNoctua
ModelNF-A14 FLX
Fan Counts1 Fan
Fan ControllerNo Controller
TypeCase Fan
CompatibilityCPU Cooler, Water-Cooling Radiator and Case
Fan Size140mm
Fan Thickness25mm
Bearing TypeSSO2-Bearing (Self-stabilising oil-presure bearing)
RPM1200 RPM +/-10%
1050 RPM +/-10% (with L.N.A adapter)
900 RPM +/-10% (With U.L.N.A)
Air Flow115.5 m3/h (standard)
101.9 m3/h ( w/L.N.A. )
88.7 m3/h ( w/U.L.N.A. )
Noise Level19.2 dB(A) standard
16.4dB(A) (w/ L.N.A )
13.8dB(A) (w/U. L.N.A )
Power Connector3 Pin
ColorBrown
LEDNo
FeaturesSucceeding the award-winning NF-P14
Square 140mm frame
Flow Acceleration Channels
AAO Frame
Stepped Inlet Design
Inner Surface Microstructures
Integrated Anti-Vibration Pads
SSO2 Bearing
Metal bearing shell
Smooth Commutation Drive 2
3 speed settings for full flexibility
Extensive cabling options
Ultra-Low Power Consumption
Dimensions140 x 140 x 25mm
Poids d’expédition0.37 kg
Dimensions du colis241 × 174 × 36 mm

Autres versions de ce modèle

2 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

How loud is the NF-A14 FLX at 1200 RPM during continuous operation?

At the standard 1200 RPM setting the fan produces 19.2 dB(A). With the supplied Low-Noise Adaptor it drops to 16.4 dB(A) at 1050 RPM, and the Ultra-Low-Noise Adaptor brings it down to 13.8 dB(A) at 900 RPM.

Does the 3-pin connector require a PWM header or can it run from a standard motherboard fan header?

The fan uses a 3-pin Molex connector and includes a 3:4-pin adaptor, so it can be powered from a regular 3-pin or 4-pin motherboard header or directly from a power supply.

Will the 140 mm square frame with 124.5 mm mounting holes line up with my existing 140 mm radiator or case mounts?

Yes. The square 140 mm frame matches the 124.5 mm hole spacing used on standard 140 mm radiators and case fan positions, ensuring full coverage and secure mounting.

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