Bitmain release date for any L3+ are now March 21st. 4 damn months. So they get you to buy the miner and they will mine with them for 4 months killing the value than release just as they did with D3. Even worse they only take BCH so forcing a pump into BCH. This company needs competition that is real because they killed D3 in the 3 months it took to get the D3 they were mining with them so difficutly rocketed up and we get no ROI on them! Barely make anything off them.
This company has gotten to be crooked scammers that will get the miners to buy the equipment so they can mine the value out of the coin than dump them on the miners worthless!
Where is Bitmain located? That should answer all your questions and raise new ones such as 'why the #^$! would you trust them with your money?'. I've lived and worked in Asia for the last 10 years and the locals would laugh at you.