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Noctua NF-A4x20 PWM Computer case Fan 4 cm Beige, Brown
Noctua NF-A4X20 PWM 40x40x20 mm, 4-Pin PWM, 1200-5000 RPM, 12.2/14.9
Quick Code: Q387202Part Code: NF-A4X20 PWMNoctua
Product Overview
Specification
Delivery & Returns
Technical Advice
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 PWM version sports Noctua’s custom-designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an 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.
40x20mm size
Compared to Noctua’s award-winning NF-A4x10, the NF-A4x20 is twice as thick, which allows for increased static pressure performance and makes the NF-A4x20 ideal for demanding applications with high flow resistance.
Flow Acceleration Channels
The NF-A4x20 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.
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.
SSO2 bearing
The NF-A4x20 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.
Custom-designed PWM IC with SCD
Supporting fully automatic PWM speed control, the fan uses Noctua's custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.
Low-Noise Adaptor
The NF-A4x20 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 5000 to 4400rpm. The L.N.A. can be used either to run the fan at a fixed speed of 4400rpm or to cap the maximum speed when using automatic PWM control.
OmniJoinâ„¢ adaptor set
Many devices featuring 40mm fans use proprietary fan headers, so the NF-A4x20 comes with Noctua's OmniJoinâ„¢ adaptor set. Just cut the original fan's cable, fix it to the adaptor using the supplied 3M Scotchlokâ„¢ connectors and you can plug the NF-A4x20 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 and a 4-pin y-cable allows the connection of a second fan to the same PWM fan header for automatic control.
6-year manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A4x20 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty.
Technical Description: 40x40x20 mm, 4-Pin PWM, 1200-5000 RPM, 12.2/14.9 dB, 0.6 W, 5-12 V
Design
Product colour:
Beige, Brown
Logistics data
Harmonized System (HS) code:
84733080
Other features
Mean time to failure (MTTF):
150000 h
Mounting hole pattern (W x D):
32 x 32 mm
Packaging content
Performance
Pulse-width modulation (PWM) support:
Maximum air pressure:
2.26 mmH2O
Minimum air pressure:
1.75 mmH2O
Airflow with LNA (max):
8.3 m³/h
Airflow:Description of the airflow characteristics for the product
9.4 m³/h
Noise level with LNA (max):
12.2 dB
Noise level (high speed):How loud the device is when used at high speed.
14.9 dB
Rotational speed with LNA (max):
4400 RPM
Rotational speed (max):
5000 RPM
Rotational speed (min):
1200 RPM
Compatible processor series:A processor which is compatible with this device, belongs to a 'series' which is part of 'family' e.g Celeron D, Celeron G, Celeron M, or, in some cases, is the same as 'family'.
Not supported
Supported processor sockets:The sockets (plugs) for processors that are supported (can be used) by the device.
Not supported
Fan diameter:The size of the fan, measured by the distance from one side of the fan to the other, via a straight line going through the middle of the fan.
4 cm
Type:Characteristics of the device.
Fan
Suitable location:
Computer case
Power
Maximum current:The greatest possible amount of current, which is a quantity representing the rate of flow of electric charge.
0.05 A
Power supply:The way in which the product is powered e.g. rechargeable battery, mains electricity connected via a plug and cable.
0.6 W
Weight & dimensions
Height:The measurement of the product from head to foot or from base to top.
20 mm
Depth:The distance from the front to the back of something.
40 mm
Width:The measurement or extent of something from side to side.
40 mm
Fast & Reliable Delivery
- Free Standard Delivery on orders over £100 within 5 working days.
- Priority Delivery options: 3 working days for £4.98, or next working day for £6.99.
- Free Next Working Day Delivery for eligible orders, achieving a 95% success rate.
- Orders placed before 4:00 pm Mon-Fri are dispatched the same day.
- Delivery may require someone present to accept between 8 am and 6 pm, Mon-Fri.
- UK Only: Sorry, international delivery is not available.
Flexible & Secure Returns
- 14-Day Returns for unwanted goods.
- 30-Day Returns for faulty items, with extended support for issues arising post-30 days under the manufacturer's warranty.
- Hassle -free returns online or via customer service.
Special Notes:
- Delivery exceptions for remote areas may incur additional charges and longer delivery times.
- Missed deliveries? No worries. Two attempts made, with an option to collect from your local depot.
- Oversize or overweight items might need an extra charge; we'll inform you in advance.
Customer First Approach
- We understand things don't always go as planned. Whether it's a delivery query or return, our dedicated team at MoreCoCo is here to ensure your shopping experience is smooth and satisfying. Contact us for any assistance or inquiries.
Our Promise
- At MoreCoCo, your satisfaction is our priority. We're committed to delivering quality and reliability, making your shopping experience as convenient and trustworthy as possible.
NF-A4X20 PWM Noctua
9010018100105 B07125KWG1
40x40x20 mm, 4-Pin PWM, 1200-5000 RPM, 12.2/14.9 dB, 0.6 W, 5-12 V
£19.00 and
In stock
SKU: NF-A4X20 PWM