661-7386 2.7GHz i7 Apple Logic Board with 16GB RAM, A1398 for MacBook Pro 15inch Retina Early 2013 NB-5664W This is a replacement 2.7GHz logic board for the Retina MacBook Pro released in Early 2013.
EEE code: FFW6,FFW7,FFWG,FFWJ,FFWK,FFWM,FFWN,FFWP
Apple part number: 661-7386
Compatible models: A1398
661-7386 2.7GHz i7 Apple Logic Board with 16GB RAM, A1398 for MacBook Pro 15inch Retina Early 2013 Late 2012