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Catalog/SK hynix/DDR5 RDIMM/HMCG78AHBRA288N
SK hynix · Server memory

HMCG78AHBRA288N

Specs from the moderated catalog

16 GB DDR5-6400 ECC Registered DIMM (RDIMM), single-rank ×8.

How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR5catalog
Module typeRDIMM · ECC Registered DIMMcatalog
Capacity16 GBcatalog
SpeedDDR5-6400 · PC5-51200catalog
Organization / rank1Rx8catalog
Voltage1.1 VJEDEC standard for DDR5
Form factor288-pin DIMMstandard for DDR5 RDIMM
Fits these servers 12 of 65 platforms
Spec match covers every DDR5 RDIMM platform we track, so the spec-match rows above are a sample across vendors: 53 further platforms also match this module on spec. A server missing from this table is not a compatibility limit. Browse all servers →
Confirmed = listed in the vendor's memory documentation for that server. Vendor match = the vendor's own part cross-reference matches this module and its speed is validated for the platform; the module is not taken from that server's memory list. Spec match = this module meets the platform's JEDEC requirements (generation, form factor, validated speed); interchangeability is spec-based, not per-server testing. Confirm against your server's qualified parts list before ordering.
Compatible alternatives any brand · same JEDEC specification
ManufacturerPart numberSpec
KingstonKSM64R52BS8-16HA16 GB · DDR5-6400 · RDIMM · 1Rx8
KingstonKSM64R52BS8-16MD16 GB · DDR5-6400 · RDIMM · 1Rx8
KingstonKSM64R52BS8-16MH16 GB · DDR5-6400 · RDIMM · 1Rx8
MicronMTC10F1084S1RC64BR16 GB · DDR5-6400 · RDIMM · 1Rx8
SamsungM321R2GA3EB2-CCP16 GB · DDR5-6400 · RDIMM · 1Rx8
SK hynixHMCG78AHBRA16 GB · DDR5-6400 · RDIMM · 1Rx8
SK hynixHMCG78AHBRA478N16 GB · DDR5-6400 · RDIMM · 1Rx8
Modules match on all key specifications (type, form factor, capacity, speed, rank organization) and are generally interchangeable in servers that accept this spec. Interchangeability is based on matching JEDEC specifications, not per-server testing. Confirm against your server vendor's qualified parts list. View the full family →
Frequently asked
Can I use a Kingston or Micron module instead?
In most servers, yes: KSM64R52BS8-16HA (Kingston), KSM64R52BS8-16MD (Kingston), KSM64R52BS8-16MH (Kingston) match this module on every key specification (16 GB, DDR5-6400, RDIMM, 1Rx8). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.