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Catalog/Samsung/DDR4 LRDIMM/M386AAG40AM3-CWEZY
Samsung · Server memory

M386AAG40AM3-CWEZY

Verified

128 GB DDR4-3200 ECC Load-Reduced DIMM (LRDIMM), quad-rank ×4.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR43 sources
Module typeLRDIMM · ECC Load-Reduced DIMM3 sources
Capacity128 GB3 sources
SpeedDDR4-3200 · PC4-256003 sources
Organization / rank4Rx43 sources
CAS latency223 sources
Voltage1.2 VJEDEC standard for DDR4
Form factor288-pin DIMMstandard for DDR4 LRDIMM
Fits these servers 12 of 92 platforms
Spec match covers every DDR4 LRDIMM platform we track, so the spec-match rows above are a sample across vendors: 80 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
KingstonKSM32LQ4/128HC128 GB · DDR4-3200 · LRDIMM · 4Rx4
MicronMTA72ASS16G72LZ-3G2128 GB · DDR4-3200 · LRDIMM · 4Rx4
SamsungM386AAG40AM3-CWE128 GB · DDR4-3200 · LRDIMM · 4Rx4
SK hynixHMABAGL7ABR4N-XN128 GB · DDR4-3200 · LRDIMM · 4Rx4
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: KSM32LQ4/128HC (Kingston), MTA72ASS16G72LZ-3G2 (Micron), M386AAG40AM3-CWE (Samsung) match this module on every key specification (128 GB, DDR4-3200, LRDIMM, 4Rx4). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.