Crucial's 32 GB UDIMMs and SODIMMs Available: DDR4-2666 & DDR4-3200
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
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
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
2x32GB) 64GB DDR4-2666 (PC4-21300) SODIMM Memory Kit for Dell Precision 7730 at Amazon.com
Amazon.com: HyperX HX424S14IB2K2/16 Impact Black 16GB Kit of 2 (2x8GB) 2400MHz DDR4 Non-ECC CL14 260-pin Unbuffered SODIMM Internal Memory Black : Everything Else
64GB Kit (2 X 32GB) Memory for Lenovo ThinkPad X1 Extreme DDR4 2666MHz SoDIMM Memory (PARTS-QUICK Brand) at Amazon.com
64GB (2x32GB) DDR4 2666 PC4-21300 SODIMM Laptop Memory by NEMIX RAM at Amazon.com
64GB (4 X 16GB) Kit Memory Module for Apple iMac 27" 2017 5K Retina Display DDR4 2400MHz SO-DIMM RAM (PARTS-QUICK Brand) at Amazon.com