The 4202800 Sub-Zero Refrigerator Control Board is a built-in control board made of ABS plastic with a matte finish. It is specifically designed for Sub-Zero refrigerators, providing essential functionality and operation for the appliance. The control board is a unit item that includes all necessary components for installation, ensuring compatibility and reliability for your Sub-Zero refrigerator. With its electric power source and compact dimensions, this control board is a valuable replacement part for maintaining the performance of your Sub-Zero refrigerator.