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Catalog/Samsung/DDR5 RDIMM/M321R4GA3PB0-CWMCJ
Samsung · Server memory

M321R4GA3PB0-CWMCJ

Verified

32 GB DDR5-5600 ECC Registered DIMM (RDIMM), dual-rank ×8. Sold by Dell and Supermicro under their own part numbers, all cross-referenced below.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR53 sources
Module typeRDIMM · ECC Registered DIMM3 sources
Capacity32 GB3 sources
SpeedDDR5-5600 · PC5-448003 sources
Organization / rank2Rx83 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
DellSNPP8XPWC/32G✓ verified
SupermicroMEM-DR532L-SL01-ER56✓ 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 37 of 65 platforms
Spec match covers every DDR5 RDIMM platform we track, so the spec-match rows above are a sample across vendors: 28 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
Kingston9965791-046.A00G32 GB · DDR5-5600 · RDIMM · 2Rx8
Kingston9965791-113.A00G32 GB · DDR5-5600 · RDIMM · 2Rx8
Kingston9995791-014.A00G32 GB · DDR5-5600 · RDIMM · 2Rx8
Kingston9995791-016.A00G32 GB · DDR5-5600 · RDIMM · 2Rx8
KingstonKSM56R46BD8-32HA32 GB · DDR5-5600 · RDIMM · 2Rx8
KingstonKSM56R46BD8-32MD32 GB · DDR5-5600 · RDIMM · 2Rx8
KingstonKSM56R46BD8PMI-32HAI32 GB · DDR5-5600 · RDIMM · 2Rx8
MicronMTC20F2085S1RC56B32 GB · DDR5-5600 · RDIMM · 2Rx8
MicronMTC20F2085S1RC56BD132 GB · DDR5-5600 · RDIMM · 2Rx8
MicronMTC20F2085S1RC56BD232 GB · DDR5-5600 · RDIMM · 2Rx8
MicronMTC20F2085S1RC56BG132 GB · DDR5-5600 · RDIMM · 2Rx8
MicronMTC20F2085S1RC56BR32 GB · DDR5-5600 · RDIMM · 2Rx8
SamsungM321R4GA3EB0-CWM32 GB · DDR5-5600 · RDIMM · 2Rx8
SamsungM321R4GA3EB0-CWY32 GB · DDR5-5600 · RDIMM · 2Rx8
SamsungM321R4GA3PB0-CWM32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA186N32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA188N32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA190N32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA191N32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA619N32 GB · DDR5-5600 · RDIMM · 2Rx8
SK hynixHMCG88AGBRA623N32 GB · DDR5-5600 · RDIMM · 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
Is Dell SNPP8XPWC/32G the same module as M321R4GA3PB0-CWMCJ?
Yes. Dell resells this Samsung module under part number SNPP8XPWC/32G; Supermicro does the same as MEM-DR532L-SL01-ER56. 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: 9965791-046.A00G (Kingston), 9965791-113.A00G (Kingston), 9995791-014.A00G (Kingston) match this module on every key specification (32 GB, DDR5-5600, RDIMM, 2Rx8). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What servers take M321R4GA3PB0-CWMCJ?
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 SNPP8XPWC/32G) with a validated speed. Other DDR5 RDIMM platforms generally accept it too; verify against the server's qualified parts list.