Memory will clock down to run at optimal speeds depending on processor model and number of modules installed. DDR4-2666 & 2400 memory will safely operate at 2133MT/s with current Xeon D model processors.
Kingston offers Registered RDIMM, Unbuffered ECC UDIMM, and Unbuffered non-ECC UDIMMs memory modules. Modules of different memory types CANNOT be mixed within the same system.
MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode.