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

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

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Noctua NF-A4x20 PWM Ventilateur Silencieux de qualité supérieure 40 mm

Product ID: 93385300

Details

Air flow capacity
40 Cubic Per
Brand
Noctua
Compatible devices
Potential
Cooling method
Air
Material
Fiberglass PBT
Maximum rotational speed
5000 RPM

🌀5000 RPM max speed

🔇Ultra-quiet 14.9 dB noise level

⚙️4-pin PWM for smart speed control

146.53 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

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Description

🌀 Cool quietly, perform loudly — the fan your gear deserves.

COMPACT YET MIGHTY - 40x20mm size fits perfectly in tight 1U servers, routers, and NAS devices—small footprint, big impact.
PRECISION PWM CONTROL - Automatic speed adjustments via 4-pin PWM keep your system cool and efficient without manual tweaks.
VIBRATION FREE OPERATION - Anti-vibration mounts included to ensure silent, stable performance—no annoying rattles or buzzes.
WHISPER QUIET POWERHOUSE - Experience supreme cooling with barely-there noise at just 14.9 dB—your workspace stays zen.
ALL INCLUSIVE INSTALLATION KIT - Comes with screws, extension cable, y-cable, and OmniJoin adaptor for seamless integration anywhere.

The Noctua NF-A4x20 PWM is a premium 40mm cooling fan designed for compact devices like 1U servers, routers, and NAS units. Featuring a max speed of 5000 RPM with advanced acoustic optimization, it delivers powerful airflow at an ultra-quiet 14.9 dB noise level. Its 4-pin PWM connector enables smart automatic speed control, while included anti-vibration mounts and a comprehensive accessory kit ensure easy, silent installation. Trusted by professionals, it comes backed by a 6-year manufacturer warranty.

Specifications

ASIN	B071W93333
Air Flow Capacity	40 Cubic Centimetres Per Second
Best Sellers Rank	59,840 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 494 in Computer Cases
Brand	Noctua
Compatible Devices	Potential Compatible Devices: ['Router', 'Switch', 'Small Desktop']
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (1,983)
Item Dimensions L x W x H	40L x 40W x 20H millimetres
Manufacturer	SER FLYMON
Manufacturer Part Number	NF-A4x20 PWM
Material	Fiberglass Reinforced PBT
Max Rotational Speed	5000 RPM
Model Number	NF-A4x20 PWM
Noise Level	14.9 Decibels
Number of Items	1
Number of Packs	1
Power Connector Type	4-Pin
UPC	841500110109
Voltage	12 Volts

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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.

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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

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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146.53 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews