Kimtigo DDR4 16GB Laptop Dram 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook (SODIMM) RAM Non-ECC Unbuffered Single Rank 260 Pin PC Computer Memory Module Upgrade at Amazon.com
Laptop RAM Memory Modules, SODIMM 2666Mhz 260Pin 64Bits 1.2V DDR4 RAM, PC Memory Chip, Computer Memory RAM for Laptop Office Gaming (16GB) at Amazon .com
Crucial RAM 16GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT16G4SFRA32A at Amazon.com
G.SKILL Ripjaws DDR4 SO-DIMM Series DDR4 RAM 32GB (2x16GB) 2666MT/s CL18-18-18-43 1.20V Unbuffered Non-ECC Notebook/Laptop Memory SODIMM (F4-2666C18D-32GRS) at Amazon.com