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
Silicon Power DDR4 8GB 2666 MHz CL19 260-pin Laptop RAM Computer Memory Backward Compatible with DDR4 2400 at Amazon.com
Amazon.com: Patriot Memory Signature Line DDR4 8GB (1x8GB) SODIMM Frequency: 2400MHz (PC4-19200) 1. 2 Volt - PSD48G240081S : Everything Else
Micron 8GB KIT(2 x 4GB) DDR4 3200MHz PC4-25600 1.2V 1R x 16 SODIMM Laptop RAM Memory Module MTA4ATF51264HZ-3G2J1,OEM Package at Amazon.com
Amazon.com: Transcend 8GB JM DDR4 2666 SO-DIMM 1Rx8 1.2V (JM2666HSB-8G)