A1398 Speaker Part Number:609-0336-A, 923-0660 Compatible Part:ME664? MC975? MC976 Compatible models: Compatible with MacBook Pro 10.1 A1398 Compatible with MacBookPro10,1 Retina Mid 2012: MC975LL/A (2.3 Core i7) Compatible with MacBookPro10,1 Retina Mid 2012: MC976LL/A (2.6 Core i7) Compatible with MacBookPro10,1 Retina Mid 2012: MD831LL/A (2.7 Core i7) Compatible with MacBookPro10,1 Early 2013: ME664LL/A (2.4 Core i7) Compatible with MacBookPro10,1 Early 2013: ME665LL/A (2.7 Core i7) Compatible with MacBookPro10,1 Early 2013: ME665LL/A (2.8 Core i7) Compatible with MacBookPro11,2 Late 2013 (IG): ME293LL/A (2.0 Core i7) Please confirm the product model and parameters before you purchasing. If you have any questions about the product, please contact us, we will solve the problem as soon as possible.