Whatsminer factory and are OEM replacement for M30, M31,M32 ,M21 M20 series miners. 

Product Information

  MicroBT Whatsminer miner M30 control board CB4-V10

Packaging Included：

1X  MicroBT Whatsminer control board CB4-V10

Tags: M21 M20 M20S,M21S ,M30s, M31s, M32, M31, M30, M30s+, M30s++, Bitcoin, BTC, BCH, BSV