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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 GB |
| Memory Technology | DDR5 |
| Product Voltage | 1.1 V |
| RAM Speed | 4800 MHz |
| RAM Standard | DDR5-4800/PC5-38400 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL40 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 32 GB DDR5-4800 Registered ECC module is purpose-built for high-reliability server and virtualization platforms, delivering data integrity and fault tolerance essential for memory-intensive workloads like in-memory databases, virtual desktop infrastructure, and transactional processing. The dual-rank x4 organization enhances bandwidth through rank interleaving, while the registered signal type and CL40 latency maintain stable, efficient operation in high-density, multi-DIMM configurations.
1. Ample capacity per module empowers dense virtualization hosts to consolidate more VMs without sacrificing performance, directly lowering data center footprint and licensing costs.
2. DDR5 technology doubles the core architecture’s prefetch and splits power management onto the module itself, translating into substantially higher bandwidth for memory-hungry in-memory databases and AI inference pipelines.
3. End-to-end ECC detects and corrects single- and multi-bit errors in real time, which is non-negotiable for protecting financial transactions and preventing silent data corruption in long-running analytical workloads.
4. Registered signal buffering stabilizes command and address lines under heavy loading, allowing servers to populate all channels fully while maintaining reliable operation across large memory footprints.
5. Dual Rank x4 organization interleaves accesses across two ranks per channel, saturating the memory bus more effectively and keeping tail latency predictable for latency-sensitive cloud services.
The Samsung M321R4GA3BB6-CQKEG is a 32GB DDR5-4800 RDIMM engineered for mission-critical servers. Its four defining characteristics directly address the toughest data center challenges. First, the Registered buffer decouples the memory controller from the DRAM, enabling full population of large-capacity configurations without signal degradation—this means your virtualization cluster can run hundreds of VMs on a single node without crashing. Second, integrated ECC corrects single-bit errors in real time, shielding in-memory databases like Redis or SAP HANA from silent data corruption that could otherwise skew financial decisions. Third, the DDR5-4800 speed provides 38.4 GB/s of bandwidth per module, accelerating massive parallel queries. Finally, its dual-rank x4 architecture interleaves accesses on each DIMM, reducing latency and boosting throughput during simultaneous, varied workloads. With a low 1.1V VDD, it also cuts power and cooling costs. For your virtualized environments or real-time analytics, this memory means uncompromised reliability and speed where every bit counts.
General Virtualization
Deploy this 32 GB DDR5-4800 RDIMM in groups of eight across a dual-socket server (one DIMM per channel) to maximize memory bandwidth while leaving room for future expansion. For moderate consolidation of 20–30 lightweight VMs, start with four modules per CPU to deliver 256 GB total capacity, and scale to eight modules per CPU for denser workloads. The registered ECC design ensures multi-tenant stability and prevents silent data corruption under sustained memory pressure.
In-Memory Database
Populate all 16 DIMM slots of a two-socket platform with this dual-rank x4 module to reach 512 GB of capacity, allowing large Redis or SAP HANA datasets to reside entirely in DRAM. Dual-rank construction boosts interleaving and throughput, critical for low-latency key-value lookups and real-time analytics. Maintain identical part numbers across all channels to guarantee uniform access timing and error correction coverage.
High-Performance Computing (HPC)
Configure one module per memory channel (1DPC) across all eight channels per processor to achieve balanced 256 GB capacity at the rated 4800 MT/s speed—essential for memory-bandwidth-bound simulations and CFD codes. The CL40 latency and registered signaling keep signal integrity high in dense node clusters running MPI workloads. For GPU-accelerated nodes, pair this RDIMM with a single complementary 32 GB DIMM per socket to avoid capacity bottlenecks when staging large datasets for parallel computation.
Rigorously tested server DDR5 RDIMM, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.
Q: Can I mix this M321R4GA3BB6-CQKEG with other memory modules of different brands or speeds?
A: Mixing Registered ECC DDR5 modules from different brands or speeds is not recommended. It may cause system instability, prevent booting, or force the memory controller to down-clock all DIMMs to the lowest common specifications.
Q: Is this memory compatible with my server system?
A: This 32GB DDR5-4800 RDIMM is compatible with servers using Intel Xeon Scalable (Sapphire Rapids) or AMD EPYC 9004 Series processors that support Registered ECC DDR5 memory on platforms like C741 or SP5 socket designs.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate identical DIMMs per channel starting with the furthest slot from the CPU. Always follow the platform-specific memory population guide (e.g., 1 DIMM per channel for balanced memory bandwidth on 8-channel systems).
Q: Does this module support overclocking or XMP profiles?
A: No. This is an enterprise-grade Registered ECC DDR5 module designed for data integrity and stability. It adheres strictly to JEDEC DDR5-4800 standards and does not support XMP or overclocking profiles.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. As a Samsung-built RDIMM with on-die ECC and stringent validation, the expected annualized failure rate (AFR) is very low, typically under 0.5% for enterprise memory.