https://github.com/AntMiner/AntGen1/tree/master/PCBLimitation
Only support 1 or 2 chains.
Total Hash rate can not be more than 120G per chain.
Future: We are designing a type of new control board based on ARM A8. When it is ready, the chain number can be up to 16, and the chip number can be up to 256 per chain.