ITEM NAME:2 DC-IN POWER BOARD MacBook Pro Retina 15" A1398 Mid 2012,2013,2014,2015 3C DESCRIPTION The MagSafe 2 board connects the MagSafe 2 power adapter to the logic board. Is that already obvious?.The MagSafe 2 board connects the MagSafe 2 power adapter to the logic board. MacBookPro11,2 Mid 2014 (IG): MGXA2LL/A (2.2 GHz Core i7). MacBookPro11,2 Mid 2014 (IG): MGXA2LL/A (2.5 GHz Core i7). MacBookPro11,2 Mid 2014 (IG): MGXA2LL/A (2.8 GHz Core i7).