Introduction: The MacBook Professional A2159 logic board supports i5 (1.4 GHz) and i7 (1.7 GHz) CPUs, ensuring compatibility, tested trustworthiness, and preservation of key options like Touch ID for mid-2019 Retina https://moverapple.com/products/macbook-pro-retina-13-a2159-logic-board-i5-i7-replacement?VariantsId=10127