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 PMW 静音ファン 40mm

Product ID: 728787452

Details

ブランド
Noctua
冷却方法
空気
商品の寸法
40長さ x 40幅 x
対応デバイス
サーバ
最大回転速度
5000 毎分回転数
材質

⏳150,000+ hours MTTF reliability

🌀5000 RPM max speed

🔇Ultra-quiet 14.9 dB(A)

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MX$1718

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In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Small fan, big impact—cool smarter, not louder!

COMPACT YET MIGHTY - 40x40x20mm size fits perfectly in tight server racks and network devices without compromise.
SMART SPEED CONTROL - 4-pin PWM connector auto-adjusts fan speed for optimal airflow and energy efficiency.
WHISPER QUIET POWER - Experience premium silent cooling with just 14.9 dB noise—your workspace’s new zen zone.
AWARD WINNING DESIGN - Flow Acceleration Channels and acoustic-optimized frame deliver superior cooling performance.
PLUG PLAY VERSATILITY - Includes anti-vibration mounts, extension cables, and adapters for seamless integration anywhere.

The Noctua NF-A4x20 PWM is a premium 40mm computer cooling fan engineered for ultra-quiet operation at up to 5000 RPM. Featuring advanced aerodynamic design and a 4-pin PWM connector for automatic speed control, it delivers efficient airflow with minimal noise (14.9 dB) and exceptional durability (150,000+ hours MTTF). Ideal for compact servers, routers, NAS, and other network devices, it comes with versatile mounting accessories for easy installation and vibration reduction.

Specifications

ASIN	B071W93333
Air Flow Capacity	9.4 Cubic Meters Per Hour
Amazon Bestseller	#105,977 in Computers ( See Top 100 in Computers ) #899 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Server
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (1,938)
Item Dimensions L x W x H	40L x 40W x 20H mm
Manufacturer	Noctua
Material Type	Fiberglass 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
Unit Count	1.0 Count
Voltage	12 Volts

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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.

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TrustScore 4.5 | 7,300+ reviews

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MX$1718

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered 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 Mexico.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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