Crucial 16GB DDR4 2666 MHz SO-DIMM Memory Kit for Mac (2 x 8GB) CT2K8G4S266M - Yahoo Shopping
OWC 16GB (2 x 8GB) PC21300 DDR4 2666MHz 260pin SO-DIMMs Memory Ram Module Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16P) at Amazon.com
Apple 16GB DDR4 2666 MHz SO-DIMM Memory Kit (2 x 8GB) MUQN2G/A
OWC 16GB (2 x 8GB) PC21300 DDR4 2666MHz 260pin SO-DIMMs Memory Ram Module Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16P) at Amazon.com
Timetec 8GB DDR4-2666 SINGLE RANK SODIMM - Timetecinc.com - Memory of Lifetime and Easy Upgrades
8WZ46AV - HP 16GB Kit (2X8GB) DDR4-2666MHz PC4-21300 Non-ECC Unbuffered CL19 260-Pin SODIMM 1.2V Single Rank Memory