Introduction: The MacBook Pro A2159 logic board supports i5 (1.4 GHz) and i7 (1.seven GHz) CPUs, making sure compatibility, tested reliability, and preservation of vital options like contact ID for mid-2019 Retina https://moverapple.com/products/macbook-pro-retina-13-a2159-logic-board-i5-i7-replacement?VariantsId=10127