Samsung M321RAJA0MB0-CWM 128G DDR5 5600 RDIMM
The Samsung M321RAJA0MB0-CWM is a 128GB DDR5-5600 registered ECC DIMM built for enterprise servers running virtualization, cloud, AI training, big data analytics, and HPC workloads. Its dual-rank x4 organization and on-module ECC make it well suited as a base capacity module for memory-heavy hosts. Note that DDR5 RDIMMs are not backward compatible with DDR4 platforms — confirm your server’s generation and validated memory list before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321RAJA0MB0-CWM |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 128GB |
| Speed | DDR5-5600 / PC5-44800R |
| Data Transfer Rate | 5600 MT/s (actual speed may depend on platform and populated configuration) |
| Rank Configuration | 2Rx4 (Dual Rank x4) |
| ECC Support | Yes (requires server platform with ECC-enabled DIMM slots) |
| Operating Voltage | 1.1V (lower than DDR4, helping reduce memory subsystem power draw) |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (8G × 4) × 40 |
| CAS Latency | CL46 |
| Maximum Bandwidth | 44.8 GB/s per module |
| Application | Enterprise Servers, Cloud Computing, AI Training, Big Data Analytics, High-Performance Computing (HPC) |
| Operating Temperature | 0°C to 95°C |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Product Status | Mass Production |
Good to know
- DDR5 RDIMMs cannot be mixed with DDR4 modules in the same system; verify your motherboard or server supports DDR5 registered DIMMs and consult the vendor’s qualified memory list for population rules per channel.
- Within the DDR5 RDIMM family, the dual-rank 2Rx4 configuration offers a good balance between per-module density and signal integrity, and 128GB modules let you reach high total capacities without filling every slot.
- Buying tip: for multi-socket or high-core-count virtualization and cache-tier hosts, order modules in matched sets (same part number and rank) to keep channel population symmetric and preserve rated 5600 MT/s performance.
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 M321RAJA0MB0-CWM is a 128GB DDR5-5600 registered ECC DIMM built for enterprise servers running virtualization, cloud, AI training, big data analytics, and HPC workloads. Its dual-rank x4 organization and on-module ECC make it well suited as a base capacity module for memory-heavy hosts. Note that DDR5 RDIMMs are not backward compatible with DDR4 platforms — confirm your server’s generation and validated memory list before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321RAJA0MB0-CWM |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 128GB |
| Speed | DDR5-5600 / PC5-44800R |
| Data Transfer Rate | 5600 MT/s (actual speed may depend on platform and populated configuration) |
| Rank Configuration | 2Rx4 (Dual Rank x4) |
| ECC Support | Yes (requires server platform with ECC-enabled DIMM slots) |
| Operating Voltage | 1.1V (lower than DDR4, helping reduce memory subsystem power draw) |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (8G × 4) × 40 |
| CAS Latency | CL46 |
| Maximum Bandwidth | 44.8 GB/s per module |
| Application | Enterprise Servers, Cloud Computing, AI Training, Big Data Analytics, High-Performance Computing (HPC) |
| Operating Temperature | 0°C to 95°C |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Product Status | Mass Production |
Good to know
- DDR5 RDIMMs cannot be mixed with DDR4 modules in the same system; verify your motherboard or server supports DDR5 registered DIMMs and consult the vendor’s qualified memory list for population rules per channel.
- Within the DDR5 RDIMM family, the dual-rank 2Rx4 configuration offers a good balance between per-module density and signal integrity, and 128GB modules let you reach high total capacities without filling every slot.
- Buying tip: for multi-socket or high-core-count virtualization and cache-tier hosts, order modules in matched sets (same part number and rank) to keep channel population symmetric and preserve rated 5600 MT/s performance.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
