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Why not spare your hearing with Acoustic PC’s Quiet Computer Cooling and Soundproofing
Solutions. Acoustic PC Stocks Quiet Computer Parts. Quiet PC Fans, Quiet CPU Coolers, Quiet
Power Supply, Quiet Computer Cases, PC Sound Dampening insulation, Ant-vibration Noise
Reduction materials such as Silicone Fan Mounts, Sorbothane Feet for Ultra Low noise PC's. We
also sell Silent PC Hardware components and Gaming products such as Fanless Silent Video
cards, SSD Drives, Professional Gaming peripherals for serious Gamers. Audio products & more.
Noctua NF-A4x10 FLX 40x10mm Quiet Computer Fan
Noctua NF-A4x10 FLX 40x10mm Quiet Computer Fan.
Noctua NF-A4x10 FLX 40x10mm Quiet Computer Fan


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.


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.


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.


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.


Stepped Inlet Design
Noctua’s Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake
noise, improves flow attachment and increases suction capacity, especially in space restricted environments.


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.


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.


Smooth Commutation Drive 2
The latest version of Noctua’s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching
noises. This makes the NF-A4x10 remarkably quiet even at very close distance.


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.


Low-Noise Adaptor for full flexibility
The NF-A4x10 FLX (Flexibility) is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 4500 to 3700rpm so that it can be fine-
tuned for superior airflow or maximum quietness.


3 to 2-pin Adaptor and Polarity Protection
The NF-A4x10 comes with an adaptor from 3-pin Molex to the 2-pin connectors used on many graphics cards or network and storage devices. An integrated
diode provides polarity protection on 2-pin connections.


OmniJoin Adaptor Set
Many devices featuring 40mm fans use proprietary fan headers, so the NF-A4x10 comes with Noctua’s OmniJoin Adaptor Set. Just cut the original fan’s cable,
fix it to the adaptor using the supplied 3M Scotchlok™ connectors and you can plug the NF-A4x10 to proprietary fan headers!


Extensive Cabling Options
The fan’s short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary.
Both cables are fully sleeved.




















6 years manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A4x10 features an MTBF of more than 150.000
hours rating and comes with a full 6 years manufacturer’s warranty.
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