Apple Macbook Pro 15.4,Used Apple MacBook Pro 15-inch Quad-core i7 (Retina, Mid 2015),MacBook Pro With Retina Display (2015)-Corei7-16GB RAM-512GB,Apple MacBook Pro MJLU2LL/A Core i7 2.8GHz (DG) Specs (Mid,2015 Apple MacBook Pro 15-inch Intel i7 2.50 GHz 4-core 16GB