A-Tech 8GB RAM Replacement for Crucial CT8G3S160BM | DDR3/DDR3L 1600MHz PC3L-12800 2Rx8 1.35V SODIMM 204-Pin Memory Module at Amazon.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