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Description
Noctua NF-A4X10 12V FLX 40x10mm Premium Cooling FanFeaturing advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF A4x10 FLX is a highly optimised, premium quality quiet fan in 40x10mm size. Smooth Commutation Drive technology and Noctuas 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 manufacturers
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 distances.
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-year manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A4x10 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer's warranty.
Technical Specifications
Size: 40x40x10 mm
Mounting hole spacing: 32x32 mm
Connector & pin-configuration: 3-pin
Cable length: 20cm + 30cm NA-EC1 extension cable
Bearing: SSO2
Blade geometry: A-Series with Flow Acceleration Channels
Frame technology: AAO (Advanced Acoustic Optimisation)
Rotational speed (+/- 10%): 4500 RPM
Rotational speed with L.N.A. (+/- 10%): 3700 RPM
Airflow: 8,2 m³/h
Airflow with L.N.A.: 6,6 m³/h
Acoustical noise: 17,9 dB(A)
Acoustical noise with L.N.A.: 12,9 dB(A)
Static pressure: 1,78 mm H₂O
Static pressure with L.N.A.: 1,21 mm H₂O
Max. input power: 0,6 W
Max. input current: 0,05 A
Operating voltage: 12 V
MTTF: > 150.000 h
Warranty: 6 years
Package Includes:
- Noctua NF-A4X10 FLX 40x10mm Premium Cooling Fan
- Low-Noise Adaptor (L.N.A.)
- 3:2 Pin Adaptor
- OmniJoin Adaptor Set
- 30cm Extension Cable
- 4 Vibration-Compensators
- 4 Fan Screws
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
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Product Reviews
★★★★★ 5
Excellent product
Size: Paper Towel Holder - Standard Design, Size: Paper Towel Holder - Standard Design
This kitchen paper towel holder is very convenient and practical. The holder keeps paper towels secure and easy to access, while the small spray bottle is perfect for quick cleaning around the kitchen. It saves space on the counter and looks neat and modern. Great quality and very useful for everyday use!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
✨✨✨✨
Size: Paper Towel Holder - Standard Design, Size: Paper Towel Holder - Standard Design
I absolutely love this paper towel holder! It’s not only sturdy and sleek, but the built-in spray bottle is such a clever and practical idea. It saves me space on my countertop and makes cleaning super convenient. The base is heavy enough to keep it stable, and it holds the rolls perfectly. Definitely a great addition to my kitchen — stylish and functional at the same time. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2025
★★★★★ 5
Useful Addition to My Kitchen
Size: Paper Towel Holder - Standard Design, Size: Paper Towel Holder - Standard Design
This has been a useful addition to my kitchen. It is simple, convenient, and works well for my daily routine. I would recommend it.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Paper towel holder with easy spray
Size: Paper Towel Holder - Standard Design
It’s handy to have paper towels and cleaning spray together in one unit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Best paper towel holder
Color: Silver
Very easy to put together, very sturdy and works great! Holds the paper towel with no slipping or popping off and it does not move around on the counter because of the suction cups. Very satisfied with the purchase. Bought another for the bathroom and one for my mom.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
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