home Mining Antminer S15 & Antminer T15 7NM ASIC Chips Bitmain New Bitcoin miners 2019 – Worth it?!? Antminer S15 & Antminer T15 7NM ASIC Chips Bitmain New Bitcoin miners 2019 – Worth it?!? By eBitcoin Posted in Mining Posted on February 23, 2019