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Featuring advanced aerodynamic design measures such as flow acceleration channels and Noctua's AAO frame, the NF-A4x20 is a highly optimized, premium-quality quiet fan.
Product Features
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.
Noctua's AAO 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.
Attributes
Main Specifications
Air Flow
9.4 cfmDimensions (WxDxH)
4 cm x 4 cm x 2 cmFan Bearing
SSO2 bearingFan Diameter
40 mmFan Height
20 mmFeatures
Pulse-width modulation (PWM) support, Advanced Acoustic Optimisation (AAO), flow acceleration channels, Smooth Commutation Drive (SCD) technology, integrated anti-vibration pads, Stepped Inlet Design, Inner Surface MicrostructuresManufacturer Warranty
6-year warrantyNoise Level
14.9 dBAPackage Content
Screws, Low-Noise Adapter (L.N.A.), OmniJoin Adaptor Set, extension cable (30 cm), 4-pin PWM Y-cable, NA-AV3 anti-vibration mountsPower Connector
4-pin fan connectorProduct Description
Noctua NF-A4x20 PWM - case fanProduct Type
Case fanRated Voltage
12 VRotation Speed
5000 rpmNoctua NF-A4x20 PWM - 40mm x 20mm 5000RPM Cooling Fan
WA
- BentleyETA 29/10/2026
- CockburnETA 29/10/2026
- GnangaraETA 28/10/2026
- Osborne ParkETA 29/10/2026
- WangaraETA 29/10/2026
VIC
- DandenongETA 28/10/2026
PLE Code
PLE-652449Manufacturer
NoctuaBoxed Weight
0.2Model Number
NF-A4x20-PWMWarranty
3 Year Manufacturer Standard Return to Base
This document and other documents provided pursuant are for informational purposes only. The information
type should not be interpreted to be a commitment on the part of the Supplier. The Supplier cannot guarantee
the accuracy of information presented. The user assumes the entire risk as to the accuracy and the use of
this document. This document may include screenshots from the manufacturer's website which may be used for
multiple variations of this product. The model number supplied at the top of this page (explicitly specified
as "Model Number") is the exact model item you will receive.
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