661-6484 Logic Board 2.6 GHz (8GB) for MacBook Pro 15-inch Mid 2012 A1398 MC975LL/A, MC976LL/A, MD831LL/A (820-3332-A) Published February 20, 2019 at 350 × 350 in 661-6484 Logic Board 2.6 GHz (8GB) for MacBook Pro 15-inch Mid 2012 A1398 MC975LL/A, MC976LL/A, MD831LL/A (820-3332-A)