Is this a 3 pin or 4 pin fan?

It is a 4 pin fan, however; it could be connected to 3 pin but it will run at full speed, according to the manual

Does this fan come with a retension clip to attach to a nh-u9s?

No it does not but the nh-u9s comes with two sets of retention clips, two for each fan.

Is this NF-A9 PWM delivered with a Y-adapter for two fan hookup?

Yes It is complete with a Y csble, an extension cable and a speed reducer. It is packed in a quality box like expensive watches with formed padding.

Is it possible to wire with 2 wires, a hot and a ground?

yes. You need to connect 12V + Ground http://noctua.at/en/products/cpu-cooler-retail.html?faq_view=72

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NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)

Product ID: 23490436

Details

Brand
Noctua
Compatible Devices
Desktop
Cooling Method
Air
Material
Fibre-glass
Maximum Rotational Speed
2000 RPM
Noise Level
22.8 Decibels

⏳>150,000 h MTTF reliability

🌀2000 RPM max speed

🔇22.8 dB(A) ultra-quiet

€ 49.16

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Stay cool, stay ahead — the silent powerhouse your rig deserves!

COMPACT YET POWERFUL - Designed for tight spaces like ITX builds and NAS devices, delivering premium airflow in a sleek 92x92x25mm frame.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 400 to 2000 RPM for tailored cooling and energy efficiency via 4-pin PWM headers.
WHISPER QUIET COOLING - Experience near-silent airflow with advanced acoustic optimization, perfect for focused work or gaming marathons.
PLUG PLAY VERSATILITY - Comes with extension and y-cables for easy installation and dual-fan setups, ensuring future-proof cooling upgrades.
VIBRATION FREE OPERATION - Includes anti-vibration mounts to eliminate distracting noise and enhance system stability.

The Noctua NF-A9 PWM is a premium 92mm case fan engineered for ultra-quiet, high-performance cooling. Featuring a 4-pin PWM connector for dynamic speed control up to 2000 RPM, it combines advanced acoustic optimization and vibration-dampening mounts to deliver whisper-quiet airflow. Ideal for compact PC builds and NAS devices, it boasts exceptional durability with over 150,000 hours mean time to failure and includes versatile accessories for effortless installation.

Specifications

ASIN	B00RUZ059O
Best Sellers Rank	#48 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (4,193)
Global Trade Identification Number	04139052263135, 04716123315513
Item Dimensions L x W x H	3.62"L x 0.98"W x 3.62"H
Item Weight	0.5 Pounds
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	2000 RPM
Model	NF-A9 PWM
Noise Level	22.8 Decibels
Number of Items	1
Part Number	NF-A9 PWM
Power Connector Type	4-Pin
UPC	842431014481 731215275791
Unit Count	1.0 Count
Voltage	12 Volts
Warranty Description	6 year manufacturer’s warranty

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TrustScore 4.5 | 7,300+ reviews

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

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€ 49.16

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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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