Can these be wired to a usb connector and run off a usb wall charger?

Yes. I run mine off of the gpio pins on a raspberry pi. That's the same concept.

Does this noctua nf-a4x20 5v pwm premium-quality quiet 40mm fan come with the mounting screws?

Yes, it comes with screws a couple of different connectors for attaching it to 3 and 4 pin connections also some rubbery plug things to pull through the mount holes.

Can a 3.3v PWM signal be used to control fan speed?

Yes, a 3.3V logic (PWM) signal will control this fan. I use an Arduino DUE board to control this fan. The DUE puts out 3.3V logic signals.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Noctua NF-A4x20 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (40x20mm, Brown)

Noctua NF-A4x20 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (40x20mm, Brown)

Product ID: 43512932

Details

Brand
Noctua
Compatible Devices
Desktop
Cooling Method
Air
Global Trade Identification Number
Material
Fibre-glass
Maximum Rotational Speed
5000 rpm

⏳150,000+ hours MTTF

🌀5000 RPM max speed

🔇Ultra-quiet 14.9 dB(A)

27150CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Description

🌀 Stay cool, stay ahead — the silent fan your tech deserves!

BUILT TO LAST - Engineered with fibre-glass reinforced PBT and backed by a 6-year warranty for unmatched durability and reliability.
SMART PWM CONTROL - 4-pin PWM interface delivers dynamic speed adjustments up to 5000 RPM for optimized cooling and energy efficiency.
COMPACT PRECISION FIT - Sized perfectly at 40x20mm, ideal for NVIDIA Jetson Nano, 1U servers, and tight network/storage setups.
WHISPER QUIET POWERHOUSE - Experience supreme airflow at a barely-there 14.9 dB noise level—your workspace stays cool and distraction-free.
ALL INCLUSIVE INSTALLATION KIT - Comes with anti-vibration mounts, screws, extension cable, and OmniJoin adaptor for seamless integration.

The Noctua NF-A4x20 5V PWM is a premium, ultra-quiet 40x20mm cooling fan designed for compact and sensitive electronics like NVIDIA Jetson Nano and network devices. Featuring a max speed of 5000 RPM, advanced acoustic optimization, and a 4-pin PWM connector, it ensures efficient, whisper-quiet airflow with over 150,000 hours of reliable operation. Its robust build and comprehensive mounting accessories make it the go-to choice for professionals demanding silent, durable cooling solutions.

Specifications

ASIN	B071FNHVXN
Best Sellers Rank	#210 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (948)
Global Trade Identification Number	09010018100136
Item Dimensions L x W x H	1.57"L x 0.79"W x 1.57"H
Item Weight	84 g
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	5000 rpm
Model	NF-A4x205VPWM
Noise Level	14.9 db
Number of Items	1
Part Number	NF-A4x20 5V PWM
Power Connector Type	4-Pin
Unit Count	1 Count
Voltage	5 volts
Warranty Description	6 year manufacturer’s warranty

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

27150CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews