Bitmain Announces NextGeneration 7 Nanometer ASIC Chip ...
Sep 21, 2018· BM1391 Chip Uses the 7nm Semiconductor Manufacturing Process and Will Greatly Improve Power Efficiency, New Mining Machine Will Be Available Soon BEIJING, China, September 21, 2018 – Jihan Wu, coCEO and cofounder of Bitmain Technologies Ltd., announced Bitmain's nextgeneration ASIC chip BM1391 for mining cryptocurrencies using the SHA256 algorithm at the World Digital Mining .