661-6538 2.7GHz Logic Board, i7 with 8GB RAM, A1398 for MacBook Pro 15inch Retina Mid 2012 NB-5585W
This is a replacement 2.7GHz logic board for the Retina MacBook Pro released in Mid 2012.
EEE code: DYW4,F0HN,F0HR,F0HV
Apple part number: 661-6538
Compatible models: A1398
661-6538 2.7GHz Logic Board, i7 with 8GB RAM, A1398 for MacBook Pro 15inch Retina Mid 2012