BM1397 BM1397AI ASIC chip for Antminer T17, S17, S17 Pro, T17+ and S17+. The hash board of this type of chip has better performance and great flexibility in configuration. In addition, the BM1397ai chip cannot be used for T17e and S17e, please explain your miner model to the sales manager when purchasing. BM1397AI is common to BM1397AG, BM1397AD and BM1397AH. Bitmain official original authentic.