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

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