661-6082 Logic Board 2.3 GHz (Rev. 2) for MacBook Pro 15 inch Early 2011 A1286 MC721LL/A, MC723LL/A, MD035LL/A ( 820-2915-B ) Published July 19, 2017 at 350 × 350 in 661-6082 Logic Board 2.3 GHz (Rev. 2) for MacBook Pro 15-inch Early 2011 A1286 MC721LL/A, MC723LL/A, MD035LL/A (820-2915-B)