Samsung 64GB DDR5-5600 ECC RDIMM 2Rx4 CL46 M321R8GA0PB0-CWMXJ
Original Samsung 64GB DDR5-5600 ECC Registered (RDIMM) memory module for compatible enterprise servers and professional workstations. Featuring 5600 MT/s speed, dual-rank 2Rx4 organization and ECC error correction, this module is designed for virtualization, databases and memory-intensive server workloads.
This is DDR5 ECC Registered server memory, not standard desktop RAM. It requires a platform supporting DDR5 RDIMM and is not compatible with DDR5 UDIMM or ECC UDIMM-only systems. Check motherboard and CPU compatibility before ordering.
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Technical Specifications
| Manufacturer | Samsung |
| Part Number (MPN) | M321R8GA0PB0-CWMXJ |
| Capacity | 64GB (1× 64GB) |
| Memory Type | DDR5 ECC Registered RDIMM |
| Memory Speed | 5600 MT/s Actual speed depends on CPU, motherboard and memory configuration. |
| Bandwidth | PC5-44800 |
| CAS Latency | CL46 |
| Rank Configuration | 2Rx4 · Dual Rank |
| DRAM Organization | 4Gx4 |
| Form Factor | 288-Pin RDIMM |
| Operating Voltage | 1.1V |
| Error Correction | ECC (Error-Correcting Code) |
| Compatibility | Servers and workstations supporting DDR5 Registered DIMMs Not compatible with standard DDR5 UDIMM or ECC UDIMM-only systems. |
| Testing | Individually function-tested after receipt Each module was briefly installed, checked for functionality and removed. |
| Packaging | Bulk packaging · No individual retail box Shipped separately in anti-static ESD protection with additional transport packaging. |
| Included | 1× Samsung 64GB DDR5-5600 ECC Registered RDIMM |
Each order includes one Samsung memory module with part number M321R8GA0PB0-CWMXJ. Product images are representative; serial numbers may vary. Verify system compatibility before purchase.
Planning a server memory upgrade or larger deployment? Multiple Samsung RDIMM modules may be available. Contact us for quantity, availability and a custom offer.
Unsure whether this RAM fits your system? Send us your server or motherboard model and required memory configuration before ordering.