MacBook Pro 15" Retina 2.5GHz Logic Board, 16GB, Mid 2014

820-3787-A 661-00679 15inch MacBook Pro Retina Mid 2014 Logic Board Discrete GPU 2.5GHz 16GB A1398 NB-5285W
This is a replacement 2.5GHz logic board for the Retina MacBook Pro released in Mid 2014 with 16GB of RAM.
Apple part number: 661-00679, 820-3787-A

Compatible models: Macbook Pro (Retina 15-inch Mid 2014), A1398, 820-3787-A

Compatible Mac info. : Macbook Pro (Retina 15-inch Mid 2014) 2.5 GHz Core i7 (DG) - MGXC2LL/A - A1398 - MacbookPro11,3 - EMC 2881 820-3787-A

661-00679 Logic Board Discrete GPU 2.5GHz 16GB A1398 - 15inch MacBook Pro Retina Mid 2014 8203787A