OWC 32GB (2 x 16GB) PC21300 DDR4 2666MHz 260pin SO-DIMMs Memory Ram Module, Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs, (OWC2666DDR4S32P) at Amazon.com
96GB OWC Memory Upgrade for Apple Mac Pro 2009-2010
OWC, 384GB, PC23400, DDR4, ECC, Set (6 x 64GB), 2933MHz, 288-pin, LRDIMM, Memory Upgrade - Newegg.com
4.0GB OWC Memory Upgrade Kit For MacBook Pro and iMac