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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 GB |
| Memory Technology | DDR5 |
| Product Voltage | 1.2 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 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR5-4800 Registered ECC RDIMM, built with a dual-rank configuration, is purpose-designed for enterprise server platforms running virtualization and in-memory databases, where uncompromising data integrity and high memory density are critical. Its registered signal type delivers stable command/address signaling under heavy loads, while on-die ECC and side-band error correction safeguard against single-bit errors, ensuring maximum uptime for mission-critical workloads.
1. Provisioning 32 GB per module allows dense memory configurations, enabling a single server to host more virtual machines and containers without sacrificing performance.
2. A 4800 MT/s data rate delivers elevated memory bandwidth, reducing latency tails in transactional databases and real-time analytics under peak loads.
3. On-die ECC corrects single-bit errors transparently, preserving data integrity in mission-critical financial and scientific computing environments.
4. Registered signal buffering stabilizes command and address lines, allowing multiple DIMMs per channel for maximum capacity without compromising signal integrity.
5. Dual-rank interleaving maximizes channel utilization by pipelining accesses across rank boundaries, sustaining throughput in heavy multi-tenancy scenarios.
The Samsung M321R4GA3BB6-CQKDS is a 32GB DDR5-4800 Registered DIMM purpose-built for server environments, where uptime and data integrity are non-negotiable. Its ECC technology silently detects and corrects single-bit memory errors in real time—critical when a flipped bit in an in-memory database like SAP HANA or Redis could silently corrupt financial transactions without any warning. The Registered buffer decouples the electrical load from the CPU’s memory controller, allowing you to populate all DIMM slots with confidence; in a dense virtualization cluster running dozens of VMs, this means you can scale to terabyte-level capacity without sacrificing signal stability or risking sudden node failures during peak loads. The dual-rank organization further boosts throughput by enabling rank interleaving, so the memory controller can begin a read on one rank while the other still completes a prior operation, directly lifting effective bandwidth for latency-sensitive consolidated workloads. Combined with the low 1.2V power envelope, this module reduces thermal stress in 24/7 data centers, translating into lower cooling costs and longer hardware longevity.
General Virtualization
Balance capacity and bandwidth by populating all memory channels symmetrically with identical 32GB DDR5-4800 RDIMMs. Use a 1DPC or 2DPC configuration to maintain full 4800MT/s speed. For a dual-socket 8-channel server, 16 DIMMs (512GB) at 1DPC or 32 DIMMs (1TB) at 2DPC offers flexible VM density. The dual-rank design enhances rank interleaving for consistent performance.
In-Memory Database
Maximize capacity: populate all DIMM slots, accepting 2DPC or 3DPC trade-offs. With 2DPC in a 16-slot-per-CPU server, 32×32GB provides 1TB per socket, ideal for in-memory databases like SAP HANA. ECC and Registered features guarantee data integrity. If extreme capacity is needed, 3DPC drops speed to ~4000MT/s but scales memory further.
High Performance Computing
Achieve peak bandwidth with 1 DIMM per channel to sustain DDR5-4800. Install eight 32GB dual-rank RDIMMs in an 8-channel system for 256GB, leveraging rank interleaving for maximum throughput. If more memory is required, upgrade to 64GB 1DPC before moving to 2DPC to preserve the highest frequency.
This DDR5 RDIMM is rigorously tested and compatible with Dell PowerEdge R760, HPE DL360 Gen11, and Lenovo SR650 V3.
Q: Can I mix this M321R4GA3BB6-CQKDS with other memory modules of different brands or speeds?
A: Mixing registered ECC modules of different brands or speeds is not recommended. It may lead to instability or performance issues. Use identical Samsung RDIMMs to ensure full compatibility and reliable operation.
Q: Is this memory compatible with my server using Intel or AMD platforms?
A: This DDR5-4800 RDIMM is compatible with servers based on Intel Xeon Scalable (Sapphire Rapids) or AMD EPYC 7003/9004 series that support registered ECC memory. Always confirm against your server vendor's QVL.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard's population guidelines. Typically, populate identical DIMMs symmetrically across memory channels, filling 1 DIMM per channel first. For 8-channel platforms, install in matched sets of 8.
Q: Does this module support overclocking or XMP profiles?
A: No, this server-grade registered ECC module does not support overclocking or XMP. It runs at JEDEC standard DDR5-4800 with fixed CL40 timings, prioritizing stability and data integrity in enterprise environments.
Q: What warranty and typical failure rate can I expect for this module?
A: This Samsung RDIMM includes a 1-year warranty. Enterprise memory typically exhibits very low failure rates due to rigorous screening. For precise AFR or MTBF figures, please contact our technical sales team.