Dell 16GB DDR4-2666 RDIMM PC4-21300V-R Dual Rank x4 ReplacementGET REAL Get Lifetime warranty Great savings Buy factory original SNPPWR5TC 16G compatible replacement memory modules configured to your Dell Precision Workstation or Dell PowerEdge system. THE TRUTH IN MEMORY Dell does not manufacture memory! They buy from one of only three original memory module makers. Samsung, Hynix and Micron make the DRAM and assemble modules. They sell to the world's largest system manufacturers including, Dell. This SNPPWR5TC