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Catalog/Samsung/DDR4 UDIMM/M391A2K43BB1-CRCQ
Samsung · Server memory

M391A2K43BB1-CRCQ

Verified

16 GB DDR4-2400 ECC Unbuffered DIMM (UDIMM), dual-rank ×8.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR45 sources
Module typeUDIMM · ECC Unbuffered DIMM5 sources
Capacity16 GB5 sources
SpeedDDR4-2400 · PC4-192005 sources
Organization / rank2Rx85 sources
CAS latency175 sources
Voltage1.2 VJEDEC standard for DDR4
Form factor288-pin DIMMstandard for DDR4 UDIMM
Fits these servers memory support by platform
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.
Also marked as same part · spec-neutral suffix
Part number
M391A2K43BB1-CRC
These part numbers are the same module. The trailing suffix encodes the DRAM die-rev / on-DIMM sourcing, not the JEDEC spec.
Compatible alternatives any brand · same JEDEC specification
ManufacturerPart numberSpec
MicronMTA18ASF2G72AZ-2G3B1ZG16 GB · DDR4-2400 · UDIMM · 2Rx8
SK hynixHMA82GU7AFR8N-UH16 GB · DDR4-2400 · UDIMM · 2Rx8
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 Micron or SK hynix module instead?
In most servers, yes: MTA18ASF2G72AZ-2G3B1ZG (Micron), HMA82GU7AFR8N-UH (SK hynix) match this module on every key specification (16 GB, DDR4-2400, UDIMM, 2Rx8). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.