This LG Electronic Control Board is a genuine OEM (Original Equipment Manufacturer) part manufactured to exact specifications Replacement LG brand Refrigerator Electronic Control Board is a PCBA (Printed Circuit Board Assembly) responsible for controling the different components within the refrigerator LG EBR78643401 Refrigerator Electronic Control Board allows for management of refrigerator funtions such as temperature control and defrost schedule High quality LG OEM EBR78643401 Refrigerator Electronic Control Board is manufactured with premium materials for durability and exact fit, be sure to follow instructions in owners manual when installing this part Life's Good when choosing Genuine LG OEM Factory parts for your LG appliances