820-3332-A 661-6481 2.3GHz Logic Board i7 with 8GB RAM and 1GB Intel Iris Graphics 2012 A1398 for MacBook Pro 15inch Retina Mid 2012 NB-5558W
This is a replacement 2.3GHz logic board for the Retina MacBook Pro released in Mid 2012.
EEE code: DY3V,DY3W,DY3Y,DY40
Apple part number: 661-6481, 820-3332-A
Compatible models: A1398, 820-3332-A
661-6481 2.3GHz Logic Board i7 with 8GB RAM and 1GB Intel Iris Graphics A1398 for MacBook Pro 15inch Retina Mid 2012 8203332A