Varunummer: 2595709

Noctua NF-A4x20 5V PWM - Chassi fläkt - 40mm - Brun - 15 dBA

Cabinet cooler, size: 40mm x 40mm x 20mm (HxWxD), noise level: 14.9 dBA, air flow: 9.4 CFM, fan RPM: 1100 - 5000 ±10%, PWM controlled, with a four-pin motherboard connection and brown color.

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187,00 kr 149,60 kr exkl. moms
Billigaste frakt: 49,00 kr
Beställningsvara, 13-14 vardagar leveranstid

Featuring advanced aerodynamic design measures such as flow acceleration channels and an AAO frame, the NF-A4x20 5V PWM is a PWM enabled 5V variant of Noctua's highly optimized, premium quality quiet fan. The custom designed NE-FD3 PWM IC that integrates Smooth Commutation Drive technology and Noctua's reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability.

40x20mm size

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.
5V PWM version

5V PWM version

Many devices such as network or storage solutions use 5 volt 40mm fans with PWM speed control. With the same operating voltage, PWM support and the included OmniJoin™ adaptor set that makes it compatible with proprietary fan headers, the NF-A4x20 5V PWM is ideal for replacing noisy or broken 5V 40mm fans with PWM.
Polarity protection

Polarity protection

As many devices using 5V fans feature proprietary connectors, and documentation of the pin alignment may not be available, the fan features an integrated diode for polarity protection. This way, you're on the safe side if you accidentally connect it with reverse polarity.
Flow Acceleration Channels

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

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

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

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

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.
Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the fan uses Noctua's custom-designed NE-FD3 5V 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.
OmniJoin™ adaptor set

OmniJoin™ adaptor set

Many devices featuring 40mm fans use proprietary fan headers, so the NF-A4x20 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-A4x20 to proprietary fan headers!
Extensive cabling options

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.
SSO2 bearing

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.
6-year manufacturer’s warranty

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.

Producent
Varunummer
2595709
Modell
NF-A4x20 5V PWM
EAN
9010018100129
Till producentens hemsida
Lämplig placering
Datorväska
Modell
Fan
Fläktdiameter
4 cm
Rotationshastighet (min)
1100 RPM
Rotationshastighet (max)
5000 RPM
Ljudnivå (hög hastighet)
14,9 dB
Luftflöde
9,4 m³/h
Maximalt lufttryck
2,26 mmH2O
Medeltid mellan fel (MTBF)
150000 h
Fan kontakt
4-stift
Strömförbrukning (vanlig)
0,5 W
Spänning
5 V
Uppskattad strömförbrukning
0,1 A
Bredd
40 mm
Djup
20 mm
Höjd
40 mm
Skruvar medföljer
Ja
Monteringsplatta (B x D)
32 x 32 mm
Harmonized System (HS)-kod
84733080

Prestanda

Lämplig placering
Datorväska
Modell
Fan
Fläktdiameter
4 cm
Rotationshastighet (min)
1100 RPM
Rotationshastighet (max)
5000 RPM
Ljudnivå (hög hastighet)
14,9 dB
Luftflöde
9,4 m³/h
Maximalt lufttryck
2,26 mmH2O
Medeltid mellan fel (MTBF)
150000 h

Design

Fan kontakt
4-stift

Strömtillförsel

Strömförbrukning (vanlig)
0,5 W
Spänning
5 V
Uppskattad strömförbrukning
0,1 A

Vikt & dimension

Bredd
40 mm
Djup
20 mm
Höjd
40 mm

Förpackningens innehåll

Skruvar medföljer
Ja

Övrigt

Monteringsplatta (B x D)
32 x 32 mm

Logistikdata

Harmonized System (HS)-kod
84733080

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