Compatibility: APPLE MACBOOK PRO 17 INCH A1297 Late 2011, MACBOOK PRO 17 INCH Early 2011, MACBOOK PRO 17 INCH Late 2011, MC725*/A, MC725B/A, MC725E/A, MC725HN/A, MC725J/A, MC725LL/A, MC725LZ/A, MC725RS/A, MC725TA/A, MC725X/A, MC725ZP/A, MD311*/A, MD311B/A, MD311E/A, MD311HN/A, MD311J/A, MD311LL/A, MD311LZ/A, MD311RS/A, MD311TA/A, MD311X/A, MD311ZP/A, MC725LL/A*, MC725LL/A, MD311LL/A*, MD311LL/A