This is a replacement left and right speaker assembly for A1286 Mid 2010, Early 2011, Late 2011, Mid 2012 series laptops.The Speakers uses an integrated flex cable to connect to the mainboard. The cable connects via 4-pin connector making it a plug and play replacement module, NO soldering is required. Compatible Part Number: 922-8700-A 922-8701-A. Aple Part #: 922-9308, 923-0085, 609-0237 Condition: New and Original, unused in perfect condition. Reference Compatible with MacBook Pro 15.4" A1286 Laptop Models: - - MacBooPro6,2 Mid 2010: MC371LL/A (2.4 GHz Core i5) - - MacBooPro6,2 Mid 2010: MC372LL/A (2.53 GHz Core i5) - - MacBooPro6,2 Mid 2010: MC373LL/A (2.66 GHz Core i7) - - MacBooPro6,2 Mid 2010: MC373LL/A (2.8 GHZ Core i7) - - MacBooPro8,2 Early 2011: MC721LL/A (2.0 GHz Core i7) - - MacBooPro8,2 Early 2011: MC723LL/A (2.2 GHz Core i7) - - MacBooPro8,2 Early 2011: MC723LL/A (2.3 GHz Core i7) - - MacBooPro8,2 Late 2011: MD318LL/A (2.2 GHz Core i7) - - MacBooPro8,2 Late 2011: MD322LL/A (2.4 GHz Core i7) - - MacBooPro8,2 Late 2011: MD322LL/A (2.5 GHz Core i7) - - MacBooPro9,1 Mid 2012: MD103LL/A (2.3 GHz Core i7) - - MacBooPro9,1 Mid 2012: MD104LL/A (2.6 GHz Core i7) - - MacBooPro9,1 Mid 2012: MD104LL/A (2.7 GHz Core i7) What’s in the box 1x Right Speaker 1x Left Speaker