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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Thermostat and Speed Controller USB Fan for AV Cabinet Cooling

Thermostat and Speed Controller USB Fan for AV Cabinet Cooling

Product ID: 257774380

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Details

Colour
gray
Brand
AC Infinity
Voltage
5 Volts
Material
Plastic
Item weight
181 g

⚡USB-powered energy efficient

🌀Adjustable fan speed control

🌡️Digital thermostat precision

Description

🌬️ Stay cool, stay ahead—because your AV gear deserves the best chill.

CUSTOMIZABLE AIRFLOW - Speed controller lets you dial in the exact cooling level your equipment demands.
COMPACT SLEEK DESIGN - Fits seamlessly into any AV cabinet setup, saving space without sacrificing performance.
USB POWERED CONVENIENCE - Plug-and-play USB power means no bulky adapters—perfect for modern minimalist setups.
WHISPER QUIET OPERATION - Keep your focus and your space noise-free while your devices stay cool and efficient.
PRECISION COOLING CONTROL - Digital thermostat ensures your AV gear stays perfectly chilled without overheating.

The AC Infinity Thermostat and Speed Controller USB Fan is a compact, USB-powered cooling solution designed specifically for AV cabinets. Featuring a digital thermostat and adjustable fan speeds, it maintains optimal operating temperatures to protect your equipment from overheating, all while operating quietly and efficiently.

Specifications

Display type	Digital
Operating temperature	32 Degrees Fahrenheit
UPC	854759004402
Manufacturer	AC Infinity
Product Dimensions	13.49 x 2.79 x 7.9 cm; 181.44 g
Batteries required	No

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