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Catalog/Samsung/DDR4 RDIMM/M393A8G40D40-CRB
Samsung · Server memory

M393A8G40D40-CRB

64 GB DDR4-2133 ECC Registered DIMM (RDIMM), 8-rank ×4.

Specs from the moderated catalog How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR4catalog
Module typeRDIMM · ECC Registered DIMMcatalog
Capacity64 GBcatalog
SpeedDDR4-2133 · PC4-17064catalog
Organization / rank8Rx4catalog
Voltage1.2 VJEDEC standard for DDR4
Form factor288-pin DIMMstandard for DDR4 RDIMM
Frequently asked
What does 8Rx4 mean?
8 ranks of DRAM chips, each 4 bits wide ("×4"). Rank organization affects how many modules a memory controller can drive at full speed, so it's listed as a key spec.