







Noctua NF-A4X20 5V PWM 40x20mm Premium Cooling Fan
Description
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO frame, the NF-A4x20 5V PWM is a PWM enabled 5V variant of Noctua’s highly optimised, premium quality quiet 40x20mm fan. The custom designed NE-FD3 PWM IC that integrates Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, the OmniJoin™ Adaptor Set and 6 years manufacturer’s warranty, the NF-A4x20 5V PWM is a premium choice for demanding 5V applications that require PWM control.
Being a 5V fan, the NF-A4x20 5V PWM cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers
40x20mm size
5V PWM version
Polarity protection
Flow Acceleration Channels
AAO frame
Stepped Inlet Design
Inner Surface Microstructures
Integrated Anti-Vibration Pads
Custom-designed PWM IC with SCD
OmniJoin™ adaptor set
Extensive cabling options
SSO2 bearing
6-year manufacturer’s warranty
Technical Specifications
Size: 40x40x20 mm
Mounting hole spacing: 32x32 mm
Connector & pin-configuration: 4-pin PWM
Cable length: 20cm + 30cm NA-EC1 extension cable
Bearing: SSO2
Blade geometry: A-Series with Flow Acceleration Channels
Frame technology: AAO (Advanced Acoustic Optimisation)
Rotational speed (+/- 10%): 5000 RPM
Min. rotational speed (PWM, +/-20%): 1100 RPM
Airflow: 9,4 m³/h
Acoustical noise: 14,9 dB(A)
Static pressure: 2,26 mm H₂O
Max. input power: 0,5 W
Max. input current: 0,1 A
Operating voltage: 5 V
Voltage: PWM signal 5 V
MTTF: > 150.000 h
Warranty: 6 years
Package includes:
- Noctua NF-A4X20 5V PWM Cooling Fan
- 4-pin y-cable
- 30cm extension cable
- OmniJoin™ adaptor set
- NA-AV3 anti-vibration mounts
- Fan screws
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Very Good packaging. The price is nearly 3 times more expensive than a no-brand fan.
Very fast delivery, ordered on 21st and got it on 22nd.
product came as described
Returns and Refunds Policy
Returns
We offer exchanges or refunds for defective products within 30 days from the date of purchase.
To be eligible for a return, your item must be in the same condition that you received it. You will also be required to return the item along with its original packaging. Flammable goods, such as batteries, are exempt from being returned.
To request for a refund or exchange, please send us an email at contact@makersupplies.sg with a copy of your receipt or proof of purchase, and provide details on the suspected defect.
If eligible for defect inspection, please send your items to the following address via trackable Singapore Post Tracked Package:
MAKERSUPPLIES SG PTE LTD
BLOCK 4009 ANG MO KIO AVENUE 10
#03-36 TECHPLACE I
SINGAPORE 569738
State your name, order number and return address on the back of the envelope. Postage costs for returned parcels will be borne by customers. If the product defect is found to be true upon inspection on our side, then we will initiate the exchange or refund process.
NOTE: Please do not send your item/s back before receiving an acknowledgement email from us.
Exchanges
Same-item exchanges will be approved on a case-by-case basis and are subjected to the following factors:
- Validity of the proof of purchase by the buyer
- Extent of the product defect
- Availability of stock for replacement
If you are eligible for an exchange, we will arrange for the exchanged item/s to be delivered to your address at no additional charge.
However, if no reasonable defect is found, you will be responsible for paying for your own re-shipping fees.
Depending on where you live, the time it may take for your exchanged product to reach you may vary.
Refunds
If an exchange for the defective item is not viable, we will offer a refund instead.
Upon approval, your refund will be processed to your credit card or original method of payment.
Late or missing refund
If you have not received a refund yet, please check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at contact@makersupplies.sg.
Sale items
Sale items cannot be refunded or exchanged.