Hynix Original 64GB (4x16GB) Laptop Memory Upgrade Compatible for HP Zbook 15 G3 Mobile Workstation DDR4 2133Mhz PC4-17000 SODIMM 2Rx8 CL15 1.2v DRAM Notebook Adamanta at Amazon.com
64GB Kit (2 X 32GB) Memory for Lenovo ThinkPad X1 Extreme DDR4 2666MHz SoDIMM Memory (PARTS-QUICK Brand) at Amazon.com
64GB Kit 4x16GB DDR4-2933 PC4-23400 ECC SODIMM 2Rx8 Memory by NEMIX RAM at Amazon.com
DATARAM 64GB (2 x 32GB) 2666MHz DDR4 PC4-21300 SO-DIMM 260 Pin Memory Upgrade for 2018 Mac Mini (macmini18,1), 2019 27 inch iMac (iMac19,1) and PC laptops at Amazon.com
v-Color 64GB(2x32GB) DDR4 2666Mhz RAM for iMac 2020 & 2019 27-inch w/Retina 5K Display iMac SODIMM Non ECC CL19 1.2V (TN432G26D819K-VC) at Amazon.com