Apple MacBook Pro A1278 (Mid 2012) 13.3" Laptop 8GB RAM, Storage options- Grade B
a1278 memory | Newegg.com
OWC 8GB (2 x 4GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S08S) at Amazon.com