The max rpm is: 2200@ 2200rpm the fan delivers ~ 32 CFM and has 17.7 dB(A)As this fan uses PWM function the min rpm is 450rpm.There is a speed adapter in the scope of delivery in case you like to drop the max rpm. In this case the max rpm would be 1750rpm.

What connector does this have? Nothing listed or shown.

PWM implies 4-pin and indeed it has a 4 pin connector

I'm running an older dell i7 3770. 77 watt. this fan is the same size as my cpu fan. i have an adapter to go from the mb to a pwm fan. will this work?

Most Dell systems use a proprietary 5-pin fan header. In order to make it work you'll either have to modify this header or buy a special adapter to make it work with Dell motherboards

Does it come with Molex adapter / Can I connect it to the power supply instead of to the mother board ?

You can connect it directly to the power supply. It doesn't come with a MOLEX adapter and I'd just pick up a generic one here on Amazon instead of opting for a dedicated 3 or 2 pin fan. Here's why: Today you may want to run it directly off the Power Supply, but down the road you may want to connect it to a 4-pin fan header and then you'll have to buy another fan if you opt for a dedicated 3 pin or 2 pin fan now

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NF-A8 PWM

Product ID: 48148339

Details

Air flow capacity
55.5 Cubic Per
Brand
Noctua
Compatible devices
Desktop
Cooling method
Air
Material
Fibre-glass
Maximum rotational speed
2200 RPM

⏳>150,000 h MTTF reliability

🌀2200 RPM max speed

🔇17.7 dB(A) ultra-quiet

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Description

🛠️ Silent cooling that works as hard as you do.

COMPACT YET MIGHTY - 80x80x25 mm size fits tight spaces like HTPCs, ITX builds, and NAS devices without compromise.
WHISPER QUIET POWER - Experience premium airflow without the noise—perfect for focused work or serene home offices.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 450 to 2200 RPM for optimal cooling and energy efficiency.
VIBRATION FREE OPERATION - Includes anti-vibration mounts and rubber pull mounts to keep your setup silent and stable.
ALL INCLUSIVE INSTALLATION KIT - Comes with splitter, extension, and low-noise adapters—everything you need for a clean, hassle-free build.

The Noctua NF-A8 PWM is a premium 80mm 4-pin PWM fan engineered for ultra-quiet, high-performance cooling in compact PC cases and devices. Featuring advanced acoustic optimization and Flow Acceleration Channels, it delivers up to 2200 RPM with minimal noise (17.7 dB(A)) and exceptional reliability (>150,000 hours MTTF). The package includes anti-vibration mounts, splitter cables, and low-noise adapters, making it the go-to choice for professionals seeking silent, efficient airflow in space-constrained setups.

Specifications

ASIN	B00NEMG62M
Air Flow Capacity	55.5 Cubic Metres Per Hour
Best Sellers Rank	6,677 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 27 in Thermal Management Products 80 in Fans & Cooling
Brand	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Country Of Origin	China
Customer Reviews	4.8 4.8 out of 5 stars (370)
Global Trade Identification Number	04716123315476, 07038557222364
Included Components	Camera Body
Item Dimensions L x W x H	8L x 8W x 2.5H centimetres
Item Type Name	Noctua NF-A8 PWM Premium Silent Fan 4-Pin (80mm, Brown)
Item Weight	0.22 Kilograms
Manufacturer	Noctua
Manufacturer Part Number	NF-A8 PWM
Material	Fibre-glass reinforced PBT
Max Rotational Speed	2200 RPM
Model Number	NF-A8 PWM
Noise Level	17.7 Decibels
Number of Items	1
Power Connector Type	4-Pin
Product Warranty	6 year manufacturer’s warranty
Unit Count	1.0 count
Voltage	12 Volts

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