So how does 52cfm + 52cfm + 130cfm?

Because these come with the plug-in adapter, which provides more power to the fans so they run faster than if you only run them off a USB port. Plug into the wall, they run at 65cfm each. Plug into the USB, they run at 52cfm each. They will also make more noise running off the wall wart.

Do they sell a 12vdc version of this?

ive tested these with a 3rd party 12v 2a inverter. at first i was concerned whether the control module could handle the power but thus far its holding stable at full power over usb in an always on configuration. that being said i am not confident the wiring could handle the increased power load over an extended period.

What's is the difference between the ac adaptor included in this compared to the ac infinity turbo adapter sold separately?

I believe they are the same. It’s just sold seperate also incase the fan setup you buy doesn’t come with one. This one does come with it.

can you screw them onto wood for example?Seems like there are dampers where the location for screws should be.

Yes. the screws can be removed and you probably can use the holes for wood screws if you can find screws thin and long enough. I attached the fans to a cowling fashioned from Sheetmetal. they work great.

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AC Infinity AC Infinity MULTIFAN S7-P, Quiet Dual 120mm AC-Powered Fan with Speed Control

Product ID: 273113420

Details

Brand
AC Infinity
Power connector type
2-Pin
Product dimensions
12L x 2.5W x
Voltage
12 Volts
Wattage
1.6 watts

⏳67,000 hrs dual ball bearing life

💨130 CFM airflow

🔇Ultra-quiet 19 dBA noise

1282 Lei

Duties & taxes included

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Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Stay cool, stay ahead — silence never looked this powerful!

WHISPER QUIET COOLING - Keep your tech chill without the noise distraction.
PREMIUM DURABILITY SAFETY - UL, CE, and RoHS certified with dual ball bearings for long-lasting, reliable operation.
TURBO POWER ADAPTER INCLUDED - Boost fan speed by 25% and power directly from any AC outlet.
DUAL 120 MM FANS WITH SPEED CONTROL - Customize airflow with three precise speed settings for optimal performance.
VERSATILE MOUNTING DAISY CHAINING - Lay flat or stand upright; connect up to 6 fans for scalable cooling power.

The AC Infinity MULTIFAN S7-P is a UL-certified, ultra-quiet dual 120mm AC-powered fan system delivering 130 CFM airflow at just 19 dBA noise. Featuring a multi-speed controller, turbo power adapter for AC outlet use, and premium dual ball bearings rated for 67,000 hours, it offers versatile horizontal or vertical mounting and daisy-chaining up to six fans. Ideal for cooling gaming consoles, AV receivers, and other electronics, it combines powerful airflow with whisper-quiet operation and robust safety certifications.

Specifications

ASIN	B01MZ6VNII
Air Flow Capacity	104 Cubic Feet Per Minute
Best Sellers Rank	#74,814 in Computers ( See Top 100 in Computers ) #618 in Computer Case Fans
Brand	AC Infinity
Brand Name	AC Infinity
Compatible Devices	Playstation
Cooling Method	Air
Cooling method	Air
Customer Reviews	4.7 out of 5 stars 2,420 Reviews
Item Dimensions L x W x H	12L x 2.5W x 12H centimeters
Manufacturer	AC Infinity
Material Type	Rubber
Maximum Rotational Speed	2000 RPM
Model	AI-MPF120P2
Noise Level	19 Decibels
Number of Items	2
Number of Packs	1
Part Number	AI-MPF120P2
Power Connector Type	2-Pin
Power connector type	2-Pin
Product dimensions	12L x 2.5W x 12H centimeters
UPC	854759004778
Unit Count	1 Count
Voltage	12 Volts
Wattage	1.6 watts

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