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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🌀 Elevate your airflow game with silent precision.

COMPACT POWERHOUSE - Perfect 80mm size for HTPC, ITX, and small form factor builds.
TRUSTED DURABILITY - Reference-class SSO2 bearing ensures smooth, long-lasting performance.
SMART SPEED CONTROL - 4-pin PWM enables automatic, precise fan speed adjustments from 450 to 2200 RPM.
WHISPER QUIET COOLING - Experience premium silence with AAO frame and Flow Acceleration Channels.
LOW NOISE ADAPTABILITY - Includes Low-Noise Adaptor to cap max speed at 1750 RPM for ultra-quiet operation.

The Noctua NF-A8 PWM is an award-winning 80mm premium quiet fan designed for compact PC cases and devices. Featuring advanced aerodynamic design with Flow Acceleration Channels and an Acoustic Optimisation frame, it delivers superior silent cooling. The 4-pin PWM interface allows automatic speed control between 450 and 2200 RPM, with a Low-Noise Adaptor included to reduce noise further. Built with a durable SSO2 bearing, it’s the elite choice for professionals demanding quiet, efficient airflow in tight spaces.

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Brand	Noctua
Product Dimensions	8 x 8 x 2.5 cm; 220 g
Item model number	NF-A8 PWM
Manufacturer	noctua
Series	Noctua NF-A8 PWM
Color	- Beige, Marron
Computer Memory Type	DIMM
Voltage	12 Volts
Are Batteries Included	No
Lithium Battery Weight	245 Grams
Number of Lithium Metal Cells	1
Item Weight	220 g

Noctua NF-A8 PWM, 4-Pin Premium Quiet Fan (80mm, Brown)

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