661-6491 2.3GHz Logic Board,QC, IVB, A1286 for MacBook Pro 15.4 2012 MD103LL/A 820-3330 NB-5562W
This is a MacBook Pro 15" Unibody 2.3GHz Core i7 Logic Board for the Mid 2012 model.
EEE code: F327,F32C,F3JG,F3JK
Apple part number: 661-6491
Compatible models: A1286
661-6491 2.3GHz Logic Board,QC, IVB, A1286 for Macbook Pro 15.4 2012 MD103LL/A