Amazon.com: Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro (Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM : Electronics
G.Skill Ripjaws Series 8GB 204-Pin DDR3 SO-DIMM DDR3 1600 (PC3 12800) Laptop Memory (F3-1600C9S-8GRSL) at Amazon.com
SAMSUNG 8GB DDR3 SO-DIMM Memory Module at Amazon.com
TEAMGROUP Elite DDR3L 16GB Kit (2 x 8GB) 1600MHz PC3-12800 CL11 Unbuffered Non-ECC 1.35V SODIMM 204-Pin Laptop Notebook PC Computer Memory Module Ram Upgrade - TED3L16G1600C11DC-S01 at Amazon.com
OWC 8GB PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Module Upgrade Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S8GB) at Amazon .com