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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Description

🛠️ Cool smarter, not louder — the fan your rig deserves!

COMPACT YET MIGHTY - Perfect 92x92x25mm size fits tight builds like HTPCs and ITX cases without compromise.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 400 to 2000 RPM for tailored cooling and energy efficiency.
VIBRATION FREE OPERATION - Includes anti-vibration mounts to keep your rig silent and stable under load.
WHISPER QUIET POWERHOUSE - Experience premium airflow without the noise—max 22.8 dB(A) keeps your workspace zen.
ALL INCLUSIVE INSTALLATION KIT - Comes with Low-Noise Adaptor, extension & y-cables—ready for dual fan setups and hassle-free upgrades.

The Noctua NF-A9 PWM is a premium 92mm quiet fan engineered for superior cooling with minimal noise. Featuring advanced Flow Acceleration Channels and acoustic optimization, it delivers up to 2000 RPM with a whisper-quiet 22.8 dB(A) noise level. Designed for compact PC builds and CPU coolers, it includes versatile accessories like anti-vibration mounts and PWM control cables, ensuring effortless installation and long-lasting performance with a 150,000+ hour MTTF.

Specifications

ASIN	B00RUZ059O
Air Flow Capacity	78.9 Cubic Metres Per Hour
Best Sellers Rank	13,507 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 99 in Thermal Management Products 171 in Fans & Cooling
Brand	Noctua
Compatible Devices	Desktop
Compatible devices	Desktop
Cooling Method	Air
Cooling method	Air
Customer Reviews	4.9 out of 5 stars 4,019 Reviews
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	04139052263135, 04716123315513
Included Components	Camera Body
Item Dimensions L x W x H	25L x 92W x 92H millimetres
Item Weight	0.5 Pounds
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
Power Connector Type	4-Pin
Power connector type	4-Pin
Product Warranty	2 year manufacturer
Product dimensions	25L x 92W x 92H millimetres
UPC	842431014481 731215275791
Unit Count	1.0 count
Voltage	12 Volts

Reviews

C**U

3.06.2025

G**Y

13.09.2017

J**Z

2.09.2025

A**E

27.10.2021

M**.

11.08.2025

W**M

8.06.2022

D**D

3.05.2021

R**.

29.10.2023

C**N

22.01.2026

C**N

15.02.2026

E**R

20.02.2026

A**T

10.12.2025

N**.

21.08.2025

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₩87451

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In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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

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