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
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
8WZ46AV - HP 16GB Kit (2X8GB) DDR4-2666MHz PC4-21300 Non-ECC Unbuffered CL19 260-Pin SODIMM 1.2V Single Rank Memory
Crucial 16GB Kit (2 x 8GB) DDR4-2400 SODIMM Memory for Mac - Newegg.com
DDR4 2666MHZ PC4-21300 ECC SODIMM Compatible with Synology DiskStation
Integral RAM 16GB kit (2x8GB) DDR4 2666MHz SODIMM Laptop Notebook MacBook Memory at Amazon.com
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