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Catalog/Samsung/DDR5 RDIMM/M321R2GA3PB0-CWMXJ
Samsung · Server memory

M321R2GA3PB0-CWMXJ

Verified

16 GB DDR5-5600 ECC Registered DIMM (RDIMM), single-rank ×8. Sold by Dell under its own part numbers, all cross-referenced below.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR54 sources
Module typeRDIMM · ECC Registered DIMM4 sources
Capacity16 GB4 sources
SpeedDDR5-5600 · PC5-448004 sources
Organization / rank1Rx84 sources
CAS latency463 sources
Voltage1.1 VJEDEC standard for DDR5
Form factor288-pin DIMMstandard for DDR5 RDIMM
OEM part numbers same module, OEM-branded
VendorOEM part numberVerification
DellAC830716✓ verified
OEM cross-references are compiled from distributor cross-reference data and OEM documentation. Verify against your vendor's parts list before ordering.
Fits these servers 30 of 65 platforms
Spec match covers every DDR5 RDIMM platform we track, so the spec-match rows above are a sample across vendors: 35 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
KingstonKSM56R46BS8-16HA16 GB · DDR5-5600 · RDIMM · 1Rx8
KingstonKSM56R46BS8-16MD16 GB · DDR5-5600 · RDIMM · 1Rx8
KingstonKSM56R46BS8PMI-16HAI16 GB · DDR5-5600 · RDIMM · 1Rx8
MicronMTC10F1084S1RC56B16 GB · DDR5-5600 · RDIMM · 1Rx8
MicronMTC10F1084S1RC56BD116 GB · DDR5-5600 · RDIMM · 1Rx8
MicronMTC10F1084S1RC56BD216 GB · DDR5-5600 · RDIMM · 1Rx8
MicronMTC10F1084S1RC56BG1R16 GB · DDR5-5600 · RDIMM · 1Rx8
MicronMTC10F1084S1RC56BR16 GB · DDR5-5600 · RDIMM · 1Rx8
SamsungM321R2GA3EB0-CWM16 GB · DDR5-5600 · RDIMM · 1Rx8
SamsungM321R2GA3PB0-CWM16 GB · DDR5-5600 · RDIMM · 1Rx8
SK hynixHMCG78AGBRA16 GB · DDR5-5600 · RDIMM · 1Rx8
SK hynixHMCG78AGBRA188N16 GB · DDR5-5600 · RDIMM · 1Rx8
SK hynixHMCG78AGBRA190N16 GB · DDR5-5600 · 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
Is Dell AC830716 the same module as M321R2GA3PB0-CWMXJ?
Yes. Dell resells this Samsung module under part number AC830716. The physical module is identical: OEM part numbers are branding, not different hardware.
Can I use a Kingston or Micron module instead?
In most servers, yes: KSM56R46BS8-16HA (Kingston), KSM56R46BS8-16MD (Kingston), KSM56R46BS8PMI-16HAI (Kingston) match this module on every key specification (16 GB, DDR5-5600, RDIMM, 1Rx8). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What servers take M321R2GA3PB0-CWMXJ?
Dell PowerEdge C6620, Dell PowerEdge MX760c, Dell PowerEdge R660, Dell PowerEdge R660xs, among others, match it through the vendor's own part cross-reference (e.g. Dell AC830716) with a validated speed. Other DDR5 RDIMM platforms generally accept it too; verify against the server's qualified parts list.