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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 GB |
| Memory Technology | DDR5 |
| RAM Speed | 6400 MHz |
| RAM Standard | DDR5-6400/PC5-51200 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL52 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR5-6400 Registered ECC RDIMM, leveraging a dual-rank x4 configuration, is engineered specifically for enterprise servers and workstations where data integrity and high memory density are critical, making it ideal for memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics. The registered signal architecture combined with ECC ensures exceptional signal stability and error correction at high speeds, while the dual-rank design maximizes capacity per channel without sacrificing the reliability demanded by 24/7 mission-critical operations.
1. ECC protection silently corrects single-bit errors, preserving data integrity in transactional databases and financial workloads that cannot tolerate silent corruption.
2. Registered signal buffering stabilizes command and address lines across densely populated server boards, enabling reliable operation with up to a dozen modules per channel.
3. Dual Rank x4 organization interleaves memory banks to keep server memory channels fully utilized, boosting effective throughput for hypervisor consolidation and virtual machine density.
4. 32GB capacity per module boosts memory headroom for in-memory caching and large-scale virtualization, allowing more active VMs per physical host without swapping to slower storage.
5. DDR5-6400 speed doubles the peak bandwidth over previous generations, accelerating real-time analytics and high-frequency trading applications where nanoseconds matter.
The Samsung M321R4GA0PB2-CCPKF is a server-grade DDR5 RDIMM, purpose-built for data center workloads. Its four defining characteristics directly address the critical pain points of enterprise computing.
The 6400 MT/s DDR5 speed is fundamental for memory-intensive applications like in-memory databases and real-time analytics. When Redis or SAP HANA processes millions of transactions per second, this bandwidth eliminates the memory wall, ensuring queries return in microseconds rather than milliseconds. Paired with Dual Rank x4 organization, the module leverages rank interleaving so the memory controller can issue concurrent commands across ranks, sustaining throughput under heavy loads without stalling.
Registered logic with ECC is non-negotiable in environments where a single bit-flip can corrupt financial records or crash a hypervisor hosting dozens of virtual machines. The register buffers stabilize signal integrity across densely populated servers, while ECC detects and corrects single-bit errors automatically. For a vSphere cluster running mixed mission-critical VMs, this means no silent data corruption and dramatically reduced emergency reboots at 3 a.m. The 288-pin RDIMM form factor ensures seamless integration into modern AMD EPYC or Intel Xeon platforms, letting IT managers scale to 32 GB per module without sacrificing reliability.
This DDR5-6400 ECC Registered DIMM (32GB, dual-rank) is designed for servers. Capacity planning for typical workloads follows.
General Virtualization
Populate one DIMM per memory channel to balance bandwidth and reduce latency. For an 8-channel server, installing eight 32GB modules per socket provides 256GB, sufficient for dozens of mixed VMs. Never mix different DIMM ranks or speeds to avoid NUMA performance penalties.
In-Memory Database
For in-memory databases like Redis or SAP HANA, maximize capacity using two DIMMs per channel (2DPC), achieving up to 512GB per socket with 16 modules. DDR5-6400 may downclock to 5200 MT/s at 2DPC; prioritize capacity for large datasets. Avoid mirroring unless data integrity outweighs cost.
High-Performance Computing (HPC)
For HPC simulations, use one DIMM per channel to sustain full 6400 MT/s bandwidth. A balanced configuration of identical 32GB RDIMMs across all channels—16 modules in a dual-socket node—delivers 512GB and optimal memory interleaving. The dual-rank x4 design already ensures high throughput, so avoid overpopulating channels.
Rigorously tested DDR5 ECC RDIMM, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, etc.
Q: Can I mix this M321R4GA0PB2-CCPKF with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands or speeds is not recommended. It may cause instability, force lower speeds, or violate system validation, especially in enterprise servers requiring strict memory homogeneity.
Q: Is this memory compatible with my Intel Xeon or AMD EPYC server platform?
A: This DDR5-6400 Registered ECC module is compatible with the latest Intel Xeon Scalable and AMD EPYC platforms supporting DDR5 RDIMMs. Always confirm your motherboard's QVL list for validated configurations.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard manual. Typically, populate identical DIMMs in balanced channels, starting with the farthest slots from the CPU per channel. Balanced memory interleaving maximizes throughput and performance.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a server-grade Registered ECC module adhering to JEDEC DDR5-6400 standards. It does not support overclocking or XMP profiles, ensuring mission-critical stability and data integrity.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. As an enterprise RDIMM meeting strict JEDEC standards, its AFR (annualized failure rate) is very low, typically under 0.5% in controlled server environments.