Hello all.
I am totally new to Asic mining, I used to mine on a gpu rig at home 3 years ago, but never had the attention to use Asic miners because of their high prices and unavailability in my country.

Currently I received an offer from a friend to start an asic mining farm since he have an access to very cheap energy (around 25 cents per Kw)
 of upto 250KW.

So efficiency is not a problem here.

I found out that old Asic miners a lot cheaper these days than before, but I'm struggling to choose from a lot of manufacturers like bitmain, Canaan, innosilicon, Aisen, etc.

Doing some research I found out that maybe Canaan has a good review of users, but bitmain is more easier.

Anyway, my targets are old S9's, Avalon 841, 851, 852, Aisen A1, innosilicon T1, T2, etc.

Those which are cheap ASICS.

I wanna know which asic should I go with?

My target is cheaper cost with higher TH and reliable equipment.

Minimum 10TH to 40TH.


I hope I can find the help here.

If anyone has a reliable seller too I will be glad to contact them.

Thanks alot.