Promax7 ETH miner

I am planning to invest in Promax7 , since I came across Promax 7.2 miner which is giving 3710 Mh/s is it possible ?I am still confused at the order placing .

The machine costs appr. 24.400$. The mining rewards for 12 months are appr. 650 ETC. If you buy ETC on an exchange you pay appr. 9750$ (15 $*650 ETC) -> and get promt. It is more profitable. Let alone the electricity price.

I would like to clarify per year 2626 ETC that’s 38264 USD.

But don’t forget, the reward amounts are also decreasing. If you aren’t financially dependant on making possible losts, and you want support the network, then OK.