1) Compatible With : Macbook Pro 15" A1398 Mid 2012 Early 2013
2) 820-3109-A 820-3609-A 821-3376-A
3) MC975LL/A,MC976LL/A,MGXA2LL/A MGXC2LL/A,MD831LL/A,ME665LL/A,ME664LL/A
4) Package Includes: 1 x DC JACK charging port connector
5) Each dc board was tested before shipping.
