Is the world's first USB drink cooler really effective?

Conclusion: No

World's First USB Coaster --The Tech Zone Computer Hardware Reviews
https://thetechzone.com/chiller.php

It seems like this

Surface temperature is 8.8 ℃

Prepare one cola on the drink cooler and one on the table and start the test

After 30 minutes: almost no temperature difference between the two colas
After 1 hour: almost no temperature difference between the two colas

So, originally, it is useless if there is no difference, but the result is that there is no temperature difference. As expected, it seems that there is not enough power to keep cold with such a large capacity. After all it is impossible unless it is something that covers the whole ...