Three manufacturers make modules at this exact specification. They match on every key parameter and are generally interchangeable: a buyer who needs "16 GB DDR4-2666 UDIMM" can usually accept any of them.
| Manufacturer | Part number | CAS | OEM refs | Data |
|---|---|---|---|---|
| Micron | MTA18ASF2G72AZ-2G6 | — | — | specs |
| Micron | MTA18ASF2G72AZ-2G6D1 | — | — | specs |
| Micron | MTA18ASF2G72AZ-2G6D1ZI | — | Crucial | specs |
| Samsung | M391A2K43BB1-CTD | — | — | specs |
| Samsung | M391A2K43DB1-CTDQ | — | — | specs |
| SK hynix | HMA82GU7CJR8N-VK | — | — | specs |
| SK hynix | HMA82GU7DJR8N-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.