Antminer S9 S9i R4 T9+ hash board replacement chip We sell high-quality BM1387BL ASIC chips to replace the faulty chip for the Antminer S9 S9i R4 T9+ hash board. When the hash board has been running for a long time, the miners have 0 hash rate or low hash rate, which may be caused by ASIC chip failure. Therefore, the faulty ASIC chip should be replaced in time to ensure that the miners can quickly resume operation. We sell high-quality ASIC hash board chips, the quality is guaranteed, and the supply is sufficient. Welcome to buy.