Wow, I would have never have thought to try and cook food with the power that a standard USB port provides well someone did. A standard port provides around 5V of power give or take a little. I am not even sure what it takes to heat a small hotplate but I am sure it is more than 5V. It looks like the guy tied together around 30 USB cables powered by his PC to power this small hotplate. But believe it or not it seems to have cooked the meat perfectly.