Bitmain Antminer A113D C76C81 Control Board unit(S21, T21) set up for air cooled miners, this high-performance control board ensures seamless operation, maximum efficiency, and supports 7000r for optimal cooling.
The control board uses the amlogic A113D main control chip and is equipped with a micro USB data interface.

Specifications : The control board is packaged separately. The control board assembly is suitable for 7000r.