Kimtigo DDR4 2666 8G Laptop Dram 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook 1Rx8 Single Rank 260 Pin SODIMM Laptop PC Computer Memory RAM(8GB) at Amazon.com
PNY Performance 8GB DDR4 DRAM 3200MHz CL22 SODIMM Notebook/Laptop Memory Black MN8GSD43200-TB - Best Buy