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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 GB |
| Memory Technology | DDR5 |
| Product Voltage | 1.1 V |
| RAM Speed | 5600 MHz |
| RAM Standard | DDR5-5600/PC5-44800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL46 |
| Rank | Dual Rank |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR5-5600 Registered DIMM with ECC is engineered for enterprise servers and data-intensive workloads such as virtualization and in-memory databases, where the registered signal type strengthens command/address integrity across high-density memory configurations. Its dual-rank design boosts bandwidth efficiency through rank interleaving, while full ECC protection ensures critical data integrity in always-on environments.
1. This density lets you pack more virtual machines onto a single physical host, driving higher consolidation ratios while preserving responsive multi-tenant performance.
2. With this speed, memory bandwidth scales to meet the demands of in-memory databases and real-time analytics, cutting data wait times under heavy load.
3. ECC protection corrects single-bit errors transparently, a frontline defense against silent data corruption that safeguards uptime in mission-critical deployments.
4. Registered logic buffers command and address lines, maintaining signal integrity across large memory arrays so you can scale capacity without compromising stability.
5. Dual rank interleaving keeps the memory channel saturated, delivering consistent throughput even when all cores hammer the memory subsystem under virtualization peaks.
The Samsung M321R4GA3PB0-CWMJH is a server-class DDR5-5600 Registered DIMM engineered for data centers where reliability and throughput define operational success. Its ECC technology continuously detects and corrects single-bit memory errors caused by cosmic radiation or electrical noise, preventing silent data corruption that could crash a virtualized host or poison financial transaction logs. The registered design uses an onboard buffer to stabilize command and address signals, allowing dense configurations of 16 or more DIMMs per server without signal degradation. This is critical for large VMware or Kubernetes clusters running hundreds of virtual machines, where each memory channel must remain robust under heavy, concurrent access. The dual-rank organization interleaves two 16GB blocks on a single module, enabling the memory controller to issue commands to one rank while data transfers from the other, significantly boosting effective bandwidth. In an in-memory database like Redis or SAP HANA hosting real-time analytics, this pipelining cuts latency on massive datasets, accelerating query responses. With 288-pin RDIMM compliance and 32GB capacity at 1.1V, the module delivers dense, power-efficient population ideal for 1U and 2U rack servers, directly lowering total cost of ownership while keeping uptime absolute.
Capacity Planning Guidance for DDR5-5600 Registered ECC Memory Modules
This 32 GB DDR5-5600 RDIMM with ECC and dual-rank design is purpose-built for servers. Below are configuration recommendations for three core workload scenarios.
General Virtualization
Balance memory channels to maximize throughput for hypervisor hosts. Populate an even number of identical 32 GB modules across all memory controllers—commonly six or eight modules for 192 GB or 256 GB total—to avoid bandwidth bottlenecks. Leave unpopulated slots for seamless expansion as VM density grows.
In-Memory Database
Capacity and consistent latency are paramount. This dual-rank 32 GB RDIMM allows dense configurations with up to 1 TB per node when fully populating all 16 or 24 slots in a typical 2-socket server. Full population minimizes NUMA penalties and keeps the entire dataset in RAM, enabling real-time analytics with predictable CL46 timings.
High-Performance Computing
HPC workloads demand maximum sustained bandwidth. Install eight or sixteen identical 32 GB RDIMMs (256 GB or 512 GB) symmetrically across processor sockets to fully utilize interleaving. The 5600 MT/s speed paired with registered ECC ensures stable, error-free operation during multi-day simulations, while uniform dual-rank modules deliver the optimal rank balance per channel.
Server-validated: rigorously tested with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.
Q: Can I mix this M321R4GA3PB0-CWMJH with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands or speeds is strongly discouraged for servers. It typically forces all modules to the lowest common speed and may cause stability issues or POST failures due to timing mismatches.
Q: Is this memory compatible with my system?
A: This module is compatible with servers supporting DDR5 Registered DIMMs with ECC. Verify your platform supports 5600 MT/s RDIMMs on 4th Gen Intel Xeon Scalable or AMD EPYC 9004 Series processors for optimal operation.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs evenly across all memory channels per your server manual. For dual-rank modules, fill one DIMM per channel first, then the second, balancing capacity and channels to maximize interleaving and bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. Enterprise-grade Registered ECC memory operates solely at JEDEC-compliant speeds with fixed timings. Overclocking and XMP are not supported, as data integrity and stability take priority over performance tuning.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. With strict quality control, the annualized failure rate (AFR) is typically between 0.2% and 0.5% under specified operating conditions, ensuring high reliability for mission-critical workloads.