Integral RAM 16GB kit (2x8GB) DDR4 2666MHz SODIMM Laptop Notebook MacBook Memory at Amazon.com
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
16GB (1x16GB) DDR4-2666MHz PC4-21300 Non-ECC UDIMM 2Rx8 1.2V Unbuffered Memory for Desktop PC by NEMIX RAM at Amazon.com
Parts-Quick 16GB Memory for QNAP TS-983XU Compatible DDR4 2666MHz ECC UDIMM RAM at Amazon.com
PNY Performance 16GB DDR4 DRAM 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook/Laptop (SODIMM) Computer Memory RAM – MN16GSD42666 at Amazon.com