Samsung M321RAJA0MB2-CCP 128G DDR5 6400 RDIMM
The Samsung M321RAJA0MB2-CCP is a 128GB DDR5 ECC Registered DIMM running at 6400 MT/s, aimed at enterprise buyers building or extending DDR5-class server platforms for virtualization hosts, cloud instances, AI training clusters, and HPC workloads. As an RDIMM, it relies on a register to reduce electrical load, enabling higher-capacity population per channel; note that DDR5 RDIMMs are not backward compatible with DDR4 boards and should not be mixed with other memory types in the same platform. Verify your server’s qualified memory list (QVL) and BIOS support before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M321RAJA0MB2-CCP |
| Brand | Samsung |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 128GB |
| Data Rate | 6400 MT/s (actual speed may depend on CPU and platform support) |
| Speed Grade | PC5-51200R |
| Rank Configuration | 2Rx4 (dual rank, x4 DRAM organization) |
| Error Correction | ECC Supported (requires a server platform with ECC support) |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | (8G x4) × 40 |
| Memory Bandwidth | 51.2 GB/s (per module, nominal) |
| Compliance | JEDEC DDR5 Standard |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, AI Training, and High-Performance Computing (HPC) |
Good to know
- This is a DDR5 RDIMM and can only be used in DDR5-capable server platforms (e.g., recent Intel Xeon SP or AMD EPYC generations); it will not fit or function in DDR4 systems, and mixing generations or unbuffered modules in the same channel population is not supported.
- Within Samsung’s DDR5 RDIMM family, the 6400 MT/s speed grade and 128GB 2Rx4 configuration position this module in the high-capacity, high-bandwidth tier, suitable as a dense memory baseline for virtualization hosts and cache/memory tiers feeding GPU-based AI training nodes.
- Buying tip: order modules in matched sets and populate memory channels symmetrically (per your motherboard manual) to achieve rated bandwidth; confirm platform QVL listing for the CCP revision before large-volume deployment.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Samsung M321RAJA0MB2-CCP is a 128GB DDR5 ECC Registered DIMM running at 6400 MT/s, aimed at enterprise buyers building or extending DDR5-class server platforms for virtualization hosts, cloud instances, AI training clusters, and HPC workloads. As an RDIMM, it relies on a register to reduce electrical load, enabling higher-capacity population per channel; note that DDR5 RDIMMs are not backward compatible with DDR4 boards and should not be mixed with other memory types in the same platform. Verify your server’s qualified memory list (QVL) and BIOS support before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M321RAJA0MB2-CCP |
| Brand | Samsung |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 128GB |
| Data Rate | 6400 MT/s (actual speed may depend on CPU and platform support) |
| Speed Grade | PC5-51200R |
| Rank Configuration | 2Rx4 (dual rank, x4 DRAM organization) |
| Error Correction | ECC Supported (requires a server platform with ECC support) |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | (8G x4) × 40 |
| Memory Bandwidth | 51.2 GB/s (per module, nominal) |
| Compliance | JEDEC DDR5 Standard |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, AI Training, and High-Performance Computing (HPC) |
Good to know
- This is a DDR5 RDIMM and can only be used in DDR5-capable server platforms (e.g., recent Intel Xeon SP or AMD EPYC generations); it will not fit or function in DDR4 systems, and mixing generations or unbuffered modules in the same channel population is not supported.
- Within Samsung’s DDR5 RDIMM family, the 6400 MT/s speed grade and 128GB 2Rx4 configuration position this module in the high-capacity, high-bandwidth tier, suitable as a dense memory baseline for virtualization hosts and cache/memory tiers feeding GPU-based AI training nodes.
- Buying tip: order modules in matched sets and populate memory channels symmetrically (per your motherboard manual) to achieve rated bandwidth; confirm platform QVL listing for the CCP revision before large-volume deployment.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
