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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 | Single Rank |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Designed for enterprise servers, this 32 GB DDR5-5600 Registered ECC module ensures data integrity in virtualized environments and in-memory databases with reliable error correction and registered signal stability. Its single-rank configuration and CL46 latency optimize memory access efficiency, making it ideal for densely populated server boards running transaction-heavy workloads.
1. Registered signal type buffers command and address signals, enabling the deployment of high-density memory configurations without compromising signal integrity — a cornerstone for scalable server farms and virtualization hosts.
2. ECC protection detects and corrects single-bit errors in real time, preserving data integrity in transactional databases and financial computing where even a silent corruption is unacceptable.
3. 32GB capacity per module balances ample headroom for containerized microservices with the flexibility to populate all channels, maximizing memory bandwidth while maintaining room for future node expansion.
4. DDR5 technology doubles the burst length and delivers higher bandwidth per core, directly accelerating in-memory analytics and AI inference workloads that depend on rapid data movement.
5. 5600 megatransfers per second speed provides the raw throughput needed to feed multi-core server CPUs, reducing latency in large-scale virtualization and ensuring smooth performance under simultaneous tenant loads.
When you are managing a virtualization cluster or running an in-memory database like SAP HANA, memory performance and integrity are not just specifications—they are the difference between seamless operations and costly downtime. The M321R4GA0PB0-CWMKH is a DDR5-5600 Registered DIMM with ECC, purpose-built for such mission-critical server workloads. Its 5600 MT/s speed translates directly into higher bandwidth, allowing your hypervisor to shuttle data between dozens of virtual machines without I/O stalls, and enabling real-time analytics to process large datasets with lower latency. True data integrity comes from the ECC feature: in a 24/7 financial database, a single bit flip caused by background radiation can corrupt a transaction—ECC detects and corrects those errors silently, protecting your results. The registered buffer stabilizes command signals, which is essential when populating multiple DIMMs per channel in dense rack servers; this means you can confidently scale up to 32 GB per module without sacrificing signal quality, avoiding boot failures or memory training issues under heavy loads. Finally, the single-rank design reduces electrical loading, letting the memory controller sustain higher clock speeds and tighter command rates, so your multi-tenant environment stays responsive even when every core is saturated. This module gives you the reliability and headroom your data center cannot afford to lose.
This 32GB DDR5-5600 ECC Registered RDIMM is a server-grade module. The capacity planning guide for typical workloads is outlined below.
General Virtualization
Populate all memory channels with one DIMM per channel (1DPC) to maintain full 5600 MT/s. In a dual-socket server with eight channels per CPU, sixteen modules provide 512GB, comfortably running 30–50 virtual machines. If higher capacity is essential, move to two DIMMs per channel and accept the reduced speed (typically 4800 MT/s).
In-Memory Database
Maximise capacity by filling every slot at 2DPC. Using single-rank 32GB RDIMMs helps control electrical loading while building terabyte-scale memory for Redis or SAP HANA. Slightly lower speed is an acceptable trade-off when the entire dataset must reside in RAM.
High-Performance Computing
Bandwidth-sensitive HPC workloads need one DIMM per channel to sustain 5600 MT/s. For an 8-channel platform, eight modules (256GB) deliver peak throughput. Reserve 2DPC configurations exclusively for jobs where dataset size forces a capacity-first approach, then benchmark to verify acceptable performance.
Validated for server use. Rigorously tested, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R4GA0PB0-CWMKH with other memory modules of different brands or speeds?
A: Mixing this RDIMM with modules of different brands, speeds, or ranks is not recommended. It may cause stability issues and typically disables vendor support on enterprise server platforms.
Q: Is this memory compatible with my system?
A: This DDR5-5600 Registered ECC module is designed for AMD EPYC 9004/8004 and Intel Xeon Scalable 4th/5th Gen platforms. Please confirm your server motherboard’s QVL list for validated compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard manual. Generally, populate identical DIMMs symmetrically per channel, starting with the slots farthest from the CPU, to enable balanced memory interleaving and maximum throughput.
Q: Does this module support overclocking or XMP profiles?
A: No, this is a JEDEC-compliant server Registered DIMM. It operates at standard DDR5-5600 CL46 with no support for overclocking, XMP 3.0, or user-defined performance profiles.
Q: What warranty and typical failure rate can I expect?
A: It includes a 1-year warranty. As a Samsung-built RDIMM, it delivers enterprise-grade reliability and exhibits an extremely low annualized failure rate under specified environmental conditions.