A-Tech 16GB RAM Replacement for Ramaxel RMSA3300ME78HBF-2666 | DDR4 2666MHz PC4-21300 2Rx8 1.2V SODIMM 260-Pin Memory Module at Amazon.com
SAMSUNG M471A1K43CB1-CTD 2666MHz Memory Modules (8GB, 1 x 8GB, DDR4, 2666 MHz, 260-Pin SO-DIMM, Black, Green) at Amazon.com
Arch Memory 8GB 260-Pin DDR4 2667 MHz So-dimm RAM for Razer Blade 15 (2019) Advanced RZ09-03138 at Amazon.com
Timetec 32GB KIT(2x16GB) Compatible for Apple DDR4 2666MHz / 2667MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K, Late 2018 Mac Mini (8,1) PC4-21333 /PC4-21300 MAC RAM at Amazon.com