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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 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 | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR5-4800 Registered ECC module is purpose-built for enterprise servers and workstations where data integrity and capacity scalability are critical, excelling in virtualized environments, in-memory databases, and compute-heavy workloads. Its single-rank x8 configuration with a low 1.1V voltage enhances signal stability and power efficiency, while the registered signal type and ECC ensure robust error correction and reliable operation under high-density memory configurations.
1. This module's density enables dense server configurations, maximizing the number of virtual machines per node and accelerating memory-hungry in-memory databases like SAP HANA.
2. The DDR5 architecture’s doubled bank groups and on-DIMM voltage regulation boost data throughput and energy efficiency, directly lowering operational expenses in hyperscale data centers.
3. Hardware-level error correction delivers rock-solid data integrity, silently preventing single-bit corruption that could otherwise crash long-running transactional workloads or financial batches.
4. Registered clock driver technology isolates the memory controller from excessive electrical loading, stabilizing signal integrity when all server DIMM slots are populated to maximum capacity.
5. The elevated base frequency supplies the massive bandwidth required to feed modern multi-core server CPUs, eliminating memory bottlenecks during peak virtualization or AI inference loads.
The Samsung M321R2GA3BB6-CQKVG is a server-grade DDR5 Registered DIMM with ECC, engineered for mission-critical enterprise workloads where data integrity and uptime are non-negotiable. Its four defining characteristics directly address the pain points of modern data centers. First, ECC protection actively corrects single-bit memory errors caused by cosmic radiation or electrical noise. In a dense virtualization cluster hosting dozens of VMs, an uncorrected bit flip can silently corrupt a financial transaction or trigger a host crash, cascading into costly outages. Second, the Registered signal buffer stabilizes high-capacity memory configurations by re-driving address and command signals. For a memory database like SAP HANA that demands 512GB or more of RAM per node, Registered logic is what allows you to populate all channels reliably without signal degradation, keeping in-memory analytics swift and consistent. Third, DDR5-4800 speed doubles the peak bandwidth of its DDR4 predecessor, feeding data-hungry CPU cores in real-time. This translates to faster query responses and smoother live migration of virtual machines under load. Finally, the 1.1V operating voltage improves energy efficiency across a server farm. When you run hundreds of these modules, lower power draw shrinks your cooling overhead and operational expenditure without sacrificing the performance your users depend on.
General Virtualization
For a typical hypervisor hosting multiple moderate workloads, populate both memory channels per CPU socket with identical 16GB DDR5-4800 RDIMMs to balance capacity and bandwidth. Aim for eight modules in a dual-socket server (128GB total) to handle around 20–30 lightweight VMs efficiently. The low 1.1V operating voltage and ECC protection ensure consistent, error-resilient uptime under constant multi-tenant pressure.
In-Memory Database
Maximize module count with this 16GB single-rank x8 RDIMM to feed the processor’s memory controllers without overloading rank scheduling. A six- or eight-channel platform with one DIMM per channel (96–128GB per socket) delivers the low latency (CL40) and high throughput essential for Redis or Memcached instances. Registered ECC signaling preserves data integrity under full-load in-memory analytics, preventing silent corruption during cache flushes.
High-Performance Computing
Deploy these modules in a balanced multi-channel configuration, typically 16 sticks across two sockets (256GB) for bandwidth-sensitive MPI or OpenMP jobs. The DDR5-4800 speed and single-rank design keep access times predictable while avoiding the rank-switching penalties that hurt sustained floating-point throughput. Where capacity per node is prioritized over raw speed, you can scale to 2 DIMMs per channel without exceeding the memory controller’s voltage tolerance, all while registered ECC corrects transient errors in long-running simulations.
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 M321R2GA3BB6-CQKVG with other memory modules of different brands or speeds?
A: Mixing modules of different brands, speeds, or rankings is not recommended for registered server memory. It can lead to system instability and disable advanced RAS features. All modules should be identical to ensure validated performance.
Q: Is this memory compatible with my system?
A: This DDR5-4800 RDIMM is designed for server platforms with DDR5 support, such as Intel Xeon Scalable (4th Gen) or AMD EPYC 9004 series. Please verify your motherboard's QVL and CPU memory controller capability.
Q: What is the recommended DIMM population order for optimal performance?
A: Refer to your server motherboard manual for the exact slot numbering. Typically, balance DIMMs across memory channels and populate the farthest slot from the CPU per channel first for optimal signal integrity and performance.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server-grade RDIMM focused on data integrity and reliability. It does not support XMP profiles or end-user overclocking, which would compromise ECC and 24/7 operational stability.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Manufactured to stringent standards with rigorous screening, typical annual failure rates are very low, often below 0.5%, ensuring excellent long-term reliability in data center environments.