Antminer S9i on sale now th/s Antminer ...
This Antminer S9i is not only the first 16nm miner for retailuse but using less than half the energy per gigahash of the S7, but it is also our most powerful miner to enter mass production . At joules per gigahash, this is the most efficient machine available to the bitcoin mining public. Antminer S9i photos