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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Noctua NF-A4x20 PWM, High-Performance Quiet Fan 40mm | High Airflow Low Noise 20mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 5000rpm 4-Pin PWM

Noctua NF-A4x20 PWM, High-Performance Quiet Fan 40mm | High Airflow Low Noise 20mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 5000rpm 4-Pin 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

🌀5000 RPM max speed

🔇Ultra-quiet 14.9 dB(A)

⚙️4-pin PWM for smart control

€ 42.55

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Stay cool, stay ahead — silent power in a compact package!

COMPACT YET MIGHTY - 40x40x20 mm size fits tight spaces like 1U servers and network gear without compromise.
WHISPER QUIET POWER - Experience high airflow without the noise—only 14.9 dB(A) at peak speed.
AWARD WINNING DESIGN - Flow Acceleration Channels and Acoustic Optimisation deliver superior cooling performance.
PRECISION PWM CONTROL - Seamlessly adjust fan speed with 4-pin PWM for optimal cooling and energy efficiency.
ALL INCLUSIVE ACCESSORY KIT - Includes anti-vibration mounts, extension cables, and OmniJoin adaptors for effortless installation.

The Noctua NF-A4x20 PWM is a premium 40x40x20 mm high-performance fan designed for ultra-quiet, efficient cooling in compact electronics and PC builds. Featuring a max speed of 5000 RPM, advanced acoustic optimization, and 4-pin PWM for smart speed control, it ensures reliable airflow with minimal noise. Its rich accessory kit and award-winning design make it the go-to choice for professionals demanding silent, powerful cooling in tight spaces.

Specifications

ASIN	B071W93333
Air Flow Capacity	9.4 cubic meter per hour
Best Sellers Rank	#25 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (2,070)
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 db
Number of Items	1
Number of Packs	1
Part Number	NF-A4x20 PWM
Power Connector Type	4-Pin
UPC	841500110109
Unit Count	1 Count
Voltage	12 volts
Warranty Description	6 year manufacturer’s warranty

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€ 42.55

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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