Omg!
I am not selling it for mining purpose! How do you expect anyone to mine with a Pi, only some ultra genius would think of something like that!
The purpose is different!
You can connect FPGAs or ASIC miners or any other mining boards to a Pi instead of a comp or a laptop as it consumer very little power(as much as a bulb).
Those who think that i am selling it as a mining device are wrong.
It can easily withstand upto 80°.
It is best substituted for a comp or a laptop due to its very less current consumption!
PM me if interested!