RDIMM vs UDIMM, ECC, and LRDIMM explained
Registered, load-reduced, and unbuffered DIMMs serve different platforms and are usually not interchangeable. Check the server or motherboard memory rules before ordering. Example part numbers include SK hynix HMA82GR7DJR8N-XN (RDIMM) and Samsung M386A8K40DM2-CWEZY (LRDIMM); the live list below shows available inventory.
Current server RAM by exact part number
- Samsung 32GB DDR4-3200 ECC RDIMM Server Memory PC4-3200AA 2Rx8 M393A4G43AB3-CWE — DDR4 · RDIMM · 32GB · 3200 MT/s · M393A4G43AB3-CWE — CA$435.00 — Low stock
- Lenovo 16GB DDR4-3200 ECC RDIMM Server Memory 2Rx8 4X71B67860 — Factory Sealed — DDR4 · RDIMM · 16GB · 3200 MT/s · 4X71B67860 — CA$170.00 — In stock
- SK hynix 16GB DDR4-3200 ECC RDIMM Server Memory PC4-3200AA 2Rx8 HMA82GR7DJR8N-XN — DDR4 · RDIMM · 16GB · 3200 MT/s · HMA82GR7DJR8N-XN — CA$154.50 — In stock
- Samsung 64GB DDR4-3200 ECC LRDIMM Server Memory PC4-3200AA 4Rx4 M386A8K40DM2-CWEZY — DDR4 · LRDIMM · 64GB · 3200 MT/s · M386A8K40DM2-CWEZY — CA$450.00 — Low stock
- SK hynix 64GB DDR4-2666 ECC LRDIMM Server Memory 4Rx4 HMAA8GL7CPR4N-VK — DDR4 · LRDIMM · 64GB · 2666 MT/s · HMAA8GL7CPR4N-VK — CA$500.00 — Low stock