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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NF-A9 PWM

Product ID: 47874224

Details

Air flow capacity
78.9 Cubic Per
Brand
Noctua
Compatible devices
Desktop
Cooling method
Air
Material
Fibre-glass
Maximum rotational speed
2000 RPM

🌀2000 RPM max speed

🔇22.8 dB(A) ultra-quiet

⚙️>150,000 h MTTF reliability

B/.84

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Description

🌀 Silence Meets Performance: Cool smarter, not louder.

COMPACT YET MIGHTY - Sized at 92x92x25 mm, fits perfectly in tight builds like HTPCs, ITX, and NAS devices.
WHISPER QUIET POWER - Experience premium airflow without the noise—max 22.8 dB(A) keeps your workspace serene.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 400 to 2000 RPM for optimal cooling and energy efficiency.
ALL INCLUSIVE ACCESSORY KIT - Includes anti-vibration mounts, Low-Noise Adaptor, splitter cables—everything for a flawless install.
ADVANCED ACOUSTIC ENGINEERING - Flow Acceleration Channels and Acoustic Optimisation frame deliver superior silent cooling.

The Noctua NF-A9 PWM is a premium 92mm high-performance fan engineered for ultra-quiet operation and superior airflow. Featuring advanced acoustic optimization and Flow Acceleration Channels, it delivers up to 2000 RPM with minimal noise at 22.8 dB(A). Designed for compact PC builds and demanding cooling scenarios, it includes a rich accessory kit for easy installation and offers exceptional reliability with over 150,000 hours MTTF.

Specifications

ASIN	B00RUZ059O
Air Flow Capacity	78.9 Cubic Metres Per Hour
Best Sellers Rank	7,115 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 73 in Thermal Management Products 164 in Fans & Cooling
Brand	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.9 4.9 out of 5 stars (4,104)
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	04139052263135, 04716123315513
Included Components	NF-A9 PWM
Item Dimensions L x W x H	25L x 92W x 92H millimetres
Item Highlight	High Airflow, Low Noise, 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2000rpm 4-Pin PWM
Item Weight	227 g
Manufacturer	noctua
Manufacturer Part Number	NF-A9 PWM
Material	Fibre-glass reinforced PBT
Max Rotational Speed	2000 RPM
Model Number	NF-A9 PWM
Noise Level	22.8 Decibels
Number of Items	1
Number of Packs	1
Power Connector Type	4-Pin
Product Warranty	2 year manufacturer
UPC	842431014481 731215275791
Unit Count	1.0 count
Voltage	12 Volts

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B/.84

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered 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 Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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