M393A2K43BB1-CTD - Samsung DDR4-2666 RDIMM PC4-21300V-R Dual Rank x8 Module CL19 1.2V
https://memory.net/product/m393a2k43bb1-ctd-samsung-1x-16gb-ddr4-2666-rdimm-pc4-21300v-r-dual-rank-x8-module/
Lenovo P/N:01AG618
Total = 16GB x 2 = 32GB
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