Description: Premium quiet fan, 40x40x20 mm, 12V, 4-pin PWM, max. 5000 RPM, max. 14.9 dB(A), >150,000 h MTTFAward-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance40x20mm size ideal for 1U servers or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 5000rpm maximum speed (4400rpm with supplied Low-Noise Adaptor)Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers Product Description Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 is a highly optimised, premium-quality quiet fan in size 40x20mm. The PWM version sports Noctua’s custom-designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an OmniJoin Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands. 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. 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. 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. 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. Scope of delivery NA-RC7 Low-Noise Adaptor (L.N.A)NA-YC1 4-pin PWM y-cableNA-EC1 30cm extension cableOmniJoin adaptor set4x NA-AV3 anti-vibration mountsFan screws 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. Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.8 out of 5 stars 1,749 4.8 out of 5 stars 2,321 4.8 out of 5 stars 661 4.8 out of 5 stars 358 Price $14.95$14.95 $14.95$14.95 $14.95$14.95 $14.95$14.95 Connector 4-pin PWM 3-pin 4-pin PWM 3-pin Voltage 12V 12V 5V 5V RPM Max: 5000 / Min: 1200 5000 Max: 5000 / Min: 1100 5000 RPM with L.N.A. 4400 4400 - - RPM with U.L.N.A. - 3700 - - Acoustical Noise 14,9 dB(A) 14,9 dB(A) 14,9 dB(A) 14,9 dB(A) Acoustical Noise with L.N.A. 12,2 dB(A) 12,2 dB(A) - - Acoustical Noise with U.L.N.A. - 8,5 dB(A) - - Size 40x40x20 mm 40x40x20 mm 40x40x20 mm 40x40x20 mm Colour Brown & Beige Brown & Beige Brown & Beige Brown & Beige
Price: 23.95 USD
Location: Bloomington, CA
End Time: 2025-01-03T10:58:56.000Z
Shipping Cost: 0 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: Does not apply
Item model number: NF-A4x20 PWM
Material: Fibre-glass reinforced PBT
Item Weight: 5.6 ounces
Product Dimensions: 1.57"L x 1.57"W x 0.79"H
Type: Does not apply
Is Discontinued By Manufacturer: No
Compatible Devices: Desktop
Voltage: 12 Volts
Power Connector Type: 4-Pin
Cooling Method: Air
Noise Level: 14.9 dB
Maximum Rotational Speed: 5000 RPM
Air Flow Capacity: 9.4 CMPH
