Samsung ram Memory Upgrade DDR3 PC3 12800, 1600MHz, 204 PIN, SODIMM for 2012 Apple MacBook Pro's, 2012 iMac's, and 2011/2012 Mac Mini's (8GB kit (2 x 4GB)) at Amazon.com
SAMSUNG 8GB DDR3 SO-DIMM Memory Module at Amazon.com
Samsung 8GB (PC3L-12800) DDR3L 1.35V 1600 204-Pin M471b1g73bh0-yk0 at Amazon.com