I have another question... What do you think about this brand? I think it is better Antminer (for example the Bitcoin Miner S19j Pro) but it is a more expensive... I think Whatsminer is very good to start mining... what do you think?
Thanks!!!
https://www.asicminervalue.com/miners/microbt/whatsminer-m30s-1
I always thought that 700-800 days payback for an ASIC is a very bad investment. The profit will gradually fall and you have no advantages in the price of electricity. Video cards look more attractive with a 3-year warranty.