WHAT DOES BITMAIN ANTMINER OFFICIAL WEBSITE MEAN?

I invested BTCs getting GHS from Hashnest. To start with, profits appeared within the monitor, but in the future my expense and profits disappeared with the screen and Bitmain presented me S9 in return. S9 is of no use to me, due to the price of electrical power that may be very high-priced in my state.The Antminer S19k Professional signifies a maj