Supply various bitmain antminer ASIC miner control boards. The specific models are as follows. Antminer 19 series control board: S19 PRO,S19,S19J,S19J PRO,T19 control board. Antminer 17 series control board: S17, S17 PRO, S17+, S17E, T17, T17+, T17E control board. Antminer 15 series control board: S15,T15 control board. Antminer 11 series control board: S11 control board. Antminer 9 series control board: S9,S9I,S9J ,S9K,S9SE ,T9,T9+ control board.