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
Acer SD100 16GB Single RAM 2666 MHz DDR4 CL19 1.2V Laptop Computer Memory - BL.9BWWA.210 at Amazon.com
Kingston Branded Memory 16GB DDR4 2666MT/s Single Rank SODIMM KCP426SS8/16 Notebook Memory at Amazon.com
Crucial RAM 16GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT16G4SFRA32A at Amazon.com