Noctua Fan NF-A4x10 40x40x10mm A-Series Blades with AAO Frame SSO2 Bearing Fan

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
Size
40x40x10 mm

Connector
3-pin

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 m/h
Airflow with L.N.A.
6,6 m/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

Voltage
12 V

MTBF
> 150.000 h
Scope of Delivery
Low-Noise Adaptor (L.N.A.)
3:2 Pin Adaptor
OmniJoin Adaptor Set
30cm Extension Cable
4 Vibration-Compensators
4 Fan Screws
Item Dimension (L”xW”xH”):
8.5 x 6 x 1.5

Weight:
0.5 lb

Warranty Information:
6 years