They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it.
I am not familiar with those. What's the deal with cooling them and where do you plug 100 pieces? Some special device? How much does it cost?
he was a bit sarcastic,ironic, whatever
has anyone tought of actually putting your mines in a refrigerator?
would that be harmful?
No that would be ok solution, but your refrigerator will not be able to cooldown that amount of energy. They are simply not efficient enough for that job. Even 3 kw AC has problems with cooling down a decent rig.
daaamn, how about a freezer?
could the rigs keep the temperature above freezing