Antminer S17+ hash board ASIC Chip soldering practice board control board The S21 control board is

The S21 control board is mainly used to receive and send hash board data

anti-expansion

If you are not sure what type you need

When the chip fails

Input: 200-285V AC 50/60Hz 16A Max

Antminer S17+ hash board ASIC Chip soldering practice board control board The S21 control board isAntminer S17+ hash board ASIC Chip soldering practice board The S17+ hash board soldering practice board is a hash board without BM397AG ASIC chips and heat sinks. Customers can purchase ASIC chips and heat sinks by themselves and improve everyone's soldering skills and familiarity through the repeated chip and heat sink soldering exercises. Made from high quality materials, this base plate is durable and easy to assemble. The S17+ practice board can