Can you turn off the backlit LCD display?

Of course you can. You can turn it on permanently or off if you prefer. There are also three settings available for the brightness.

What is the temperature buffer in regular operating mode - how far does the temp have to go up or down before the fan comes on or shuts off?

An additional note on this, AFAICT there is no temperature buffer in smart mode, it only applies in auto mode. In smart mode the fan just toggles on and off continuously as the temperature hovers around the set point, making that mode kinda useless. Reported as a bug to AC Infinity...

Does the fan have auto mode to turn on automatically based on temperature?

It is not the fan that have an auto mode, it is the AC Infinity Controller. I leave mine on Smart program all the time so when the temperature rise up the fans start to extract the heat gradually and silently. The warmer the receiver the faster they go until the temperature comes down again ( according to your program ) and then the system turns off automatically. This is a fantastic product and seeing how hot the receivers can get I can only highly recommend AC Infinity. Before my receiver could heat up to 42 degree celsius, now the temperature never goes above 30 degree celsius. Hope that helps.

What is the highest temperature you can set the fans to come on at?

Nvm...It looks like they've updated to a newer model than what I have. They claim the new model is: 32 to 140*F

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AC Infinity Standard Thermal and Speed Fan Controller

AC Infinity Standard Thermal and Speed Fan Controller

Product ID: 6270437

Details

Brand
AC Infinity
Color
Black
Material
Plastic
Product Dimensions
5.2"L x 1.1"W
Voltage
5 volts

📊Digital LCD display with real-time monitoring

🌡️Precision thermal probe for accurate temp control

🎛️6 adjustable fan speeds for custom airflow

€ 105.68

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Stay cool, stay ahead — the ultimate fan controller for pros who demand peak performance.

SILENT YET POWERFUL - Keeps your equipment cool quietly, eliminating distracting fan noise in your workspace or entertainment center.
PRO LEVEL MONITORING - Digital LCD display with alarm and display lock ensures you’re always in control and aware of your system’s health.
MULTI FAN CONTROL HUB - Seamlessly manages up to six USB or AC Infinity fans, perfect for complex AV or gaming setups.
PLUG PLAY SIMPLICITY - Easy installation with included thermal probe, mounting screws, and power adapter—no tech headaches.
SMART THERMAL MANAGEMENT - Auto-adjusts fan speed based on real-time temperature for optimal cooling without wasting energy.

The AC Infinity Controller 2 is a sleek, intelligent fan thermostat and speed controller designed to optimize cooling for up to six USB or AC Infinity fans. Featuring a precision thermal probe, digital LCD display, and six customizable fan speeds, it automatically adjusts airflow based on temperature changes to protect and enhance the performance of your AV cabinets, gaming consoles, or network equipment. With easy plug-and-play setup and quiet operation, it’s the essential upgrade for professionals who value equipment longevity and silent efficiency.

Specifications

ASIN	B00NG9TSG4
Best Sellers Rank	#294 in Computer Case Fans
Brand Name	AC Infinity
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (936)
Display Type	LCD
Item Dimensions L x W x H	5.2"L x 1.1"W x 3.1"H
Item Highlight	Auto Temperature Programming w/ Thermal Probe, LCD Display, 6 Fan Speed Control, for AIRPLATE, MULTIFAN in AV Cabinet Cooling
Item Weight	6.4 ounces
Manufacturer	AC Infinity
Material Type	Plastic
Model	AI-ATC
Number of Items	1
Operating Temperature	32 °F
Part Number	AI-ATC
UPC	854759004402
Unit Count	1 Count
Voltage	5 volts

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TrustScore 4.5 | 7,300+ reviews

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€ 105.68

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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