would anyone recommend this fan for a 3d printer hontend/part cooling fan?

Yes, we'd recommend using this fan for your 3d printer. (Please note that this is a 12V DC fan.)

What is de difference between noctua nf-a4x20 pwm and noctua nf-a4x20 flx?

one fan is pwm controllable (pwm), the other is not (flx). PWM controlling: https://en.wikipedia.org/wiki/Computer_fan_control

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

NF-A4x20 PWM

Product ID: 82236934

Details

Air Flow Capacity
9.4 Cubic Per
Brand
Noctua
Compatible Devices
Desktop
Cooling Method
Air
Material
Fibre-glass
Maximum Rotational Speed
5000 RPM

⏳>150,000 h MTTF reliability

🌀5000 RPM max speed

🔇Ultra-quiet 14.9 dB(A)

$38.09

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Description

🌀 Stay cool, stay silent, stay ahead.

BUILT TO LAST - Over 150,000 hours mean this fan keeps your tech cool and running longer than most competitors.
SMART PWM CONTROL - 4-pin PWM lets your system dynamically adjust fan speed for optimal cooling and energy efficiency.
COMPACT YET MIGHTY - Perfect 40x40x20mm size engineered for tight spaces like 1U servers and network gear.
WHISPER QUIET POWER - Experience premium airflow without the noise—just 14.9 dB(A) for distraction-free focus.
ALL INCLUSIVE INSTALLATION KIT - Comes with anti-vibration mounts, extension cables, and adaptors—plug and play with ease.

The Noctua NF-A4x20 PWM is a premium 40x40x20mm quiet fan designed for professional-grade cooling in compact devices like servers and NAS. Featuring a max speed of 5000 RPM with ultra-low noise at 14.9 dB(A), advanced aerodynamic design, and over 150,000 hours of reliability, it offers smart PWM speed control and a comprehensive accessory kit for seamless installation and long-term performance.

Specifications

ASIN	B071W93333
Air Flow Capacity	9.4 Cubic Meters Per Hour
Best Sellers Rank	#35 in Computer Case Fans
Brand	Noctua
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.8 out of 5 stars 2,060 Reviews
Item Dimensions L x W x H	1.57"L x 1.57"W x 0.79"H
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	5000 RPM
Model	NF-A4x20 PWM
Noise Level	14.9 Decibels
Number of Items	1
Part Number	NF-A4x20 PWM
Power Connector Type	4-Pin
Product Dimensions	1.57"L x 1.57"W x 0.79"H
UPC	841500110109
Unit Count	1.0 Count
Voltage	12 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

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Reema J.

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

1 month 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.