Three manufacturers make modules at this exact specification. They match on every key parameter and are generally interchangeable: a buyer who needs "64 GB DDR4-2666 LRDIMM" can usually accept any of them.
| Manufacturer | Part number | CAS | OEM refs | Data |
|---|---|---|---|---|
| Micron | MTA72ASS8G72LZ-2G6 | — | — | specs |
| Micron | MTA72ASS8G72LZ-2G6D2QI | — | Crucial | ✓ verified |
| Samsung | M386A8K40BM2-CTD | — | — | specs |
| Samsung | M386A8K40BM2-CTD7Q | — | — | specs |
| Samsung | M386A8K40BM2-CTD7Y | — | — | specs |
| Samsung | M386A8K40CM2-CTD | — | — | ✓ verified |
| Samsung | M386A8K40CM2-CTD7Y | — | — | specs |
| Samsung | M386A8K40DM2-CTD | — | — | specs |
| SK hynix | HMAA8GL7AMR4N-VK | — | — | specs |
| SK hynix | HMAA8GL7CPR4N-VK | — | — | specs |
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: Micron, Samsung or SK hynix. You choose from real offers.