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 Ventilateur Silencieux de qualité supérieure 40 mm

Product ID: 257798867

Details

Brand
Noctua
Cooling method
Air
Power connector type
4-Pin
Product dimensions
40L x 40W x
Voltage
12 Volts

🔇14.9 dB ultra-quiet noise level

⚙️4-pin PWM for smart speed control

🌬️5000 RPM max speed

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VT10033

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Description

🌬️ Silence Meets Performance — The Tiny Fan That Means Business

COMPACT YET MIGHTY - Ultra-compact 40x20mm size fits perfectly in tight spaces like 1U servers and network gear without compromise.
WHISPER QUIET POWER - Experience top-tier cooling with barely-there noise at just 14.9 dB.
PRECISION SPEED CONTROL - 4-pin PWM technology adapts fan speed automatically for optimal performance and energy efficiency.
VIBRATION FREE OPERATION - Includes anti-vibration mounts to keep your setup stable and silent—no annoying rattles or buzzes.
ALL INCLUSIVE INSTALLATION KIT - Comes with screws, extension cables, y-cable, and OmniJoin adaptor for seamless integration with proprietary headers.

The Noctua NF-A4x20 PWM is a premium 40mm cooling fan designed for compact devices like 1U servers, routers, and NAS units. It features a maximum speed of 5000 RPM with advanced acoustic optimization to deliver powerful airflow at an ultra-quiet 14.9 dB noise level. Equipped with 4-pin PWM for automatic speed control and anti-vibration mounts, it ensures efficient, silent cooling with easy installation supported by a comprehensive accessory kit. Trusted by professionals, it comes backed by a 6-year manufacturer’s warranty.

Specifications

ASIN	B071W93333
Air Flow Capacity	40 Cubic Centimeters Per Second
Best Sellers Rank	#6,556 in Computers ( See Top 100 in Computers ) #35 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Potential Compatible Devices: ['Router', 'Switch', 'Small Desktop']
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (1,919)
Item Dimensions L x W x H	40L x 40W x 20H millimeters
Manufacturer	SER FLYMON
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
UPC	841500110109
Voltage	12 Volts

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VT10033

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered 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 Vanuatu.

Secure transaction

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