Hash Board for MicroBT Whatsminer High-quality Whatsminer M30S+ 104T hash board is used to replace faulty, damaged, non-working hash board for M30S+ 104T miners. Replacing the faulty hash board can help miners quickly solve the situation of 0 hash rate or low hash rate and, at the same time, solve the loss caused by miners replacing faulty components. Directly replacing the hash board is the fastest and most direct solution, and it is an essential spare part for repairing M30S+ 104T miners.