This listing is new Right + Left Speakers set for Apple Macbook Pro A1278 13" 2011-2012. Compatible with all MacBook Pro A1278 2011-2012. A list of compatible model: MacBookPro8,1 Early 2011: MC700LL/A (2.3 GHz Core i5) MacBookPro8,1 Early 2011: MC724LL/A (2.7 GHz Core i7) MacBookPro8,1 Late 2011: MD313LL/A (2.4 GHz Core i5) MacBookPro8,1 Late 2011: MD314LL/A (2.8 GHz Core i7) MacBookPro9,2 Mid 2012: MD101LL/A (2.5 GHz Core i5) MacBookPro9,2 Mid 2012: MD102LL/A (2.9 GHz Core i7) Compatible Model No MC700LL/A, MD313LL/A, MC724LL/A, MD314LL/A, MD101LL/A, MD102LL/A Package Content: 1 x Right and Left Speakers set for A1278 2011 2012