Here is my open letter to all companies that produce USB peripherals that change the temperature of liquids while being powered by the USB port on your computer.
Dear companies,
Please stop selling consumers products that can change the temperature of liquids that are being powered off the USB port. The power that the USB port can supply is very finite, about 5 volts. This power is meant to power keyboard, mice, etc.
I don't think the designers of the USB port ever intended it for heating or cooling beverages. There are much better ways of providing this functionality, such as an external power transformer that can be plugged into the wall.
Thank you for you consideration,
Jason
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