Noctua NF-A20 PWM Computer case Fan 20 cm Beige, Brown

$78.31
Sold Out

Part No: NF-A20-PWM



The NF-A20 is a highly optimised, premium quality quiet 200mm fan. Featuring an AAO (Advanced Acoustic Optimisation) standard frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A20 brings the renowned quiet cooling performance of Noctua’s award-winning A-series to the increasingly popular 20cm form factor. The PWM version uses Noctua’s custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers, which allows it to strike a perfect balance between quietness and ventilation performance in each given situation. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make the NF-A20 an elite choice for the highest demands.

Award-winning Noctua quality in 20cm size
While more and more PC cases support 20cm intake, side-panel or exhaust fans, many of the bundled stock units and available aftermarket options are of questionable quality. By contrast, the NF-A20 is a true premium grade solution worthy of Noctua’s award-winning A-series.

154mm, 110x180mm and 170mm hole spacing154mm, 110x180mm and 170mm hole spacing
In order to ensure broad compatibility with today’s PC cases, the NF-A20 features three sets of mounting holes: While the 154x154mm and 110x180mm spacing allow it to replace most 200mm fans, the 170x170mm spacing is used by many 230 and 250mm fans, which can thus also be replaced by the NF-A20.

Flow Acceleration ChannelsFlow Acceleration Channels
The NF-A20 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 FrameAAO 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 DesignStepped 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 MicrostructuresInner 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 padsIntegrated 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 screws and other mounting systems.

Custom-designed PWM IC with SCDCustom-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 AdaptorLow-Noise Adaptor
The NF-A20 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 800 to 550rpm. The L.N.A. can be used either to run the fan at a fixed speed of 550rpm or to cap the maximum speed when using automatic PWM control.

Extensive cabling optionsExtensive 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 bearingSSO2 bearing
The NF-A20 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 warranty6-year manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A20 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty.
Weight dimensions
Width
200 mm
Height
200 mm
Depth
30 mm
Power
Voltage
12 V
Maximum current
0.08 A
Power supply
0.96 W
Other features
Airflow
146.9 m³/h
Mean time to failure MTTF
150000 h
Mounting hole pattern W x D
170 x 170 mm
Screws included
Yes
Packaging content
Low-noise adaptor LNA
Yes
Number of screws
4
Cables included
Fan
Design
Product colour
Beige, Brown
Suitable for
Computer case
Number of fans
1 fan(s)
Number of fan blades
9
Fan connector
4-pin
Performance
Pulse-width modulation PWM support
Yes
Minimum air pressure
0.51 mmH2O
Bearing type
Self-Stabilising Oil-pressure Bearing (SSO)
Supported processor sockets
Not supported
Rotational speed min
350 RPM
Rotational speed with LNA max
550 RPM
Rotational speed max
800 RPM
Airflow with LNA max
100.8 m³/h
Noise level high speed
18.1 dB
Compatible processor series
Not supported
Maximum air pressure
1.08 mmH2O
Noise level with LNA max
10.7 dB
Features
Fan diameter
20 cm
Type
Fan

Be The First To Review This Product!

Help other Zotim Computers users shop smarter by writing reviews for products you have purchased.

Write a product review


More From This Category


MSI Gaming GF65 10UE-036AU Thin Notebook 39.6 cm (

$2,332.00

In Stock at Supplier

Microsoft Surface Pro 7+ 128 GB 31.2 cm (12.3") In

$1,474.00

In Stock at Supplier

Microsoft 5A9-00003 software license/upgrade 1 lic

$51.61

In Stock at Supplier

Belkin CAA003BT1MWH lightning cable 1 m White

$20.05

In Stock at Supplier

Microsoft Surface Book 3 Hybrid (2-in-1) Platinum

$4,501.20

In Stock at Supplier

Cooler Master Gaming CK550 V2 keyboard USB QWERTY

$113.19

In Stock at Supplier

HyperX Alloy Origins keyboard USB QWERTY US Englis

$212.52

In Stock at Supplier

Thermaltake TOUGHFAN 12 Computer case Fan 12 cm Bl

$36.30

In Stock & Ready to ship