bitmain antminer l7 9500mh z15 miner m21 56th obtain antminer s9 asic s9 se m30s+ asic miners canaan avalonminer 1066 bitmain antminer t17+ value goldshell kd5 in inventory t19 antminer antminer t17+ 58th Whether or not the precedence is finances-aware entry-amount mining or maximizing returns on