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, High-Performance Quiet Fan 92mm | High Airflow, Low Noise, 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2000rpm 4-Pin PWM

Product ID: 23490436

Details

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

🌀2000 RPM max speed

🔇Ultra-quiet 22.8 dB noise level

🛠️Includes rich accessory kit

¥7463

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Stay cool, stay quiet — the fan your PC deserves.

COMPACT YET MIGHTY - Perfect 92x92x25mm size fits tight spaces like ITX builds and NAS devices without compromise.
WHISPER QUIET POWER - Experience high airflow without the noise—max 22.8 dB keeps your workspace serene.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 400 to 2000 RPM for optimal cooling and energy efficiency.
VIBRATION FREE OPERATION - Anti-vibration mounts included to ensure silent, stable performance that won’t rattle your setup.
READY FOR DUAL FAN SETUPS - Y-cable and extension included so you can easily scale your cooling with synchronized PWM control.

The Noctua NF-A9 PWM is a premium 92mm high-performance fan designed for silent, efficient cooling in compact PC cases and electronics. Featuring advanced acoustic optimization, a broad 400-2000 RPM PWM speed range, and a comprehensive accessory kit including anti-vibration mounts and cables, it delivers superior airflow at a whisper-quiet 22.8 dB noise level. Backed by a 6-year warranty, it’s the go-to choice for professionals demanding reliable, quiet cooling.

Specifications

ASIN	B00RUZ059O
Best Sellers Rank	#47 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (4,202)
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	8 ounces
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	2000 rpm
Model	NF-A9 PWM
Noise Level	22.8 db
Number of Items	1
Number of Packs	1
Part Number	NF-A9 PWM
Power Connector Type	4-Pin
UPC	842431014481 731215275791
Unit Count	1 Count
Voltage	12 volts
Warranty Description	6 year manufacturer’s warranty

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¥7463

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

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

1 month ago

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