Mi#There’s been a lot of skepticism aimed at the company Halong Mining and its machine the Dragonmint T1. The firm announced in November of 2017 that it would be distributing its Dragonmint devices in 2018 and stated its miners would be the most efficient machines on the market. So far, after all the controversy, some Dragonmint miners have been delivered and reviews show the machines do produce close to 16 terrahash per second during operation — but the rigs are not even close to being 30 percent more efficient than the S9, which was claimed this past November**