Are the ac infinity controllers necessary as an additional purchase? or can these fans work without a controller?

In my experience, there is no need for a controller. As long as the fan is running continuously, you are assured that hot air inside the cabinet is being removed.

How long is the power cord that comes with this unit?

5 or 6 ft I think. It's a low voltage cord, and a USB adapter that it plugs into.

Anyone rig up a filter for these? I was thinking of just using a dryer sheet as my application will be in the back of a cabinet?

The purpose of this AC Infinity AIRPLATE S9 is to draw out the air from inside the cabinet. Consequently, you do not need to rig a filter for this... If you can further elaborate your application, I may probably be able to give a suggestion.

Will it work in a teardrop camper with 12v DC power?

Yes. The fans are 5v so a 12v to 5v USB adapter would be needed to replace the provided 120v wall wart. This item is in no way water resistant. Good luck.

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AC Infinity AIRPLATE S9, Quiet Cooling Fan System 18" with Speed Control, for Home Theater AV Cabinet Cooling

Product ID: 273113417

Details

Brand
AC Infinity
Power connector type
DC Coaxial not
Product dimensions
44.5L x 15.5W
Voltage
12 Volts
Wattage
3.6 watts

🔇Ultra-quiet 21 dBA noise

⚙️Multi-speed controller

🌬️156 CFM airflow

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€ 155.42

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Stay cool, stay ahead — silence never looked this sleek.

WHISPER QUIET COOLING - Experience near-silent operation at just 21 dBA—perfect for focused work or immersive home theater vibes.
PRECISION AIRFLOW CONTROL - Adjust fan speeds seamlessly with the multi-speed controller to balance optimal cooling and minimal noise.
BOOSTED PERFORMANCE ADAPTER - Turbo Wall Adapter powers up airflow by 25%, ensuring your equipment stays cool under pressure.
SLEEK CNC MACHINED ALUMINUM - Modern brushed black finish adds a premium, professional look to your AV or media cabinet setup.
FLEXIBLE POWER OPTIONS DAISY CHAINING - Power via USB or wall outlet and connect up to six fans for scalable cooling solutions tailored to your space.

The AC Infinity AIRPLATE S9 is a UL-certified, ultra-quiet 18-inch cooling fan system designed for home theater and AV cabinets. Featuring a CNC machined aluminum frame, multi-speed controller, and dual ball bearings rated for 67,000 hours, it delivers 156 CFM airflow at just 21 dBA noise. Powered by USB or wall outlet with an included Turbo Wall Adapter boosting performance by 25%, it offers flexible, scalable cooling with easy mounting and reversible airflow.

Specifications

ASIN	B017PMM990
Air Flow Capacity	156 Cubic Feet Per Minute
Best Sellers Rank	#22,596 in Computers ( See Top 100 in Computers ) #134 in Computer Case Fans
Brand Name	AC Infinity
Compatible Devices	Desktop, Gaming Console, Graphic Cards, Projector, Radiator, Receiver, Refrigerator, Transmission Coolers
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (508)
Item Dimensions L x W x H	44.5L x 15.5W x 3.3H centimeters
Item Weight	0.01 Ounces
Manufacturer	AC Infinity
Material Type	Aluminum
Maximum Rotational Speed	1800 RPM
Model	AI-APS9
Noise Level	21 Decibels
Number of Items	3
Part Number	AI-APS9
Power Connector Type	DC Coaxial Power Connector (specific variant not obtainable)
UPC	854759004549
Voltage	12 Volts
Wattage	3.6 watts

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