16GB (1x16GB) DDR3-1866MHz PC3-14900 2Rx8 SODIMM Laptop Memory by NEMIX RAM at Amazon.com
KEMBONA high quality and speed sodimm laptop ram DDR3L 16GB(kit of 2pcs ddr3 8gb) PC3L-12800 204pin ram memory 1.35v
HyperX Impact 16GB (2 x 8GB) 204-Pin DDR3 SO-DIMM DDR3L 1600 (PC3L 12800) Laptop Memory Model HX316LS9IBK2/16 - Newegg.com
OWC 16GB PC12800 DDR3 1600MHz SO-DIMM Memory Compatible with 2015 (Late) iMac 27" w/ Retina 5K Models and Compatible PCs (OWC1600DDR3S16G) at Amazon.com
Silicon Power Hynix IC Compatible for Apple DDR3 DDR3L 16GB (2 x 8GB) RAM 1600MHz (PC3 12800) 204 pin CL11 1.35V Non ECC Unbuffered SODIMM Laptop Notebook Memory RAM Module Upgrade at Amazon.com