HyperX Impact 16GB (2 x 8GB) 204-Pin DDR3 SO-DIMM DDR3L 1600 (PC3L 12800) Laptop Memory Model HX316LS9IBK2/16 - Newegg.com
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM Memory for Mac | CT2K8G3S160BM | Crucial.com