Four manufacturers make modules at this exact specification. They match on every key parameter and are generally interchangeable: a buyer who needs "64 GB DDR5-4800 registered" can usually accept any of them.
| Manufacturer | Part number | CAS | OEM refs | Data |
|---|---|---|---|---|
| Kingston | KSM48R40BD4-64MD | 40 | — | ✓ verified |
| Kingston | KSM48R40BD4TMM-64HMR | 40 | — | ✓ verified |
| Micron | MTC40F2046S1RC48B | 40 | — | ✓ verified |
| Micron | MTC40F2046S1RC48BA1 | 40 | Supermicro | ✓ verified |
| Micron | MTC40F2046S1RC48BA1R | 40 | — | ✓ verified |
| Micron | MTC40F2046S1RC48BR | 40 | — | ✓ verified |
| Samsung | M321R8GA0BB0-CQK | 40 | Supermicro | ✓ verified |
| Samsung | M321R8GA0BB0-CQKZJ | 40 | HPE | ✓ verified |
| Samsung | M329R8GA0BB0-CQK | 40 | Lenovo | ✓ verified |
| SK hynix | HMCG94AEBRA | 40 | — | ✓ verified |
| SK hynix | HMCG94AEBRA109N | 40 | — | ✓ verified |
| SK hynix | HMCG94AEBRA123N | 40 | HPE · Lenovo | ✓ verified |
| SK hynix | HMCG94MEBQA | 40 | — | ✓ verified |
| SK hynix | HMCG94MEBRA | 40 | Supermicro | ✓ verified |
| SK hynix | HMCG94MEBRA109N | 40 | Lenovo | ✓ verified |
| SK hynix | HMCG94MEBRA123N | 40 | — | ✓ verified |
Practical rule: servers accept these modules interchangeably in almost all cases. Keep one vendor within a memory bank and match existing modules when expanding, rather than mixing brands side by side.
Post a request for this spec and VAT-verified suppliers quote whichever brand they actually stock: Kingston, Micron, Samsung or SK hynix. You choose from real offers.