General

Engineer's Note

This DDR5-4800 registered ECC module is purpose-built for enterprise servers and workstations, excelling in mission-critical workloads like virtualization, in-memory databases, and data analytics where data integrity and system stability are paramount. Its registered signal architecture combined with on-die ECC corrects single-bit errors in real time, while the single-rank x8 configuration reduces electrical loading on the memory bus, enabling higher-capacity deployments without sacrificing the 4800 MT/s frequency and the power efficiency of 1.1V operation.

Technical Specs & Insights

1. ECC error correction guards against silent data corruption in memory, ensuring transaction integrity for mission-critical enterprise databases and financial services.
2. Registered signal buffering stabilizes the command and address bus, enabling large-scale server deployments with dense memory populations without signal degradation.
3. Sixteen-gigabyte capacity per module supports higher virtual machine density and in-memory caching, reducing hypervisor swapping and boosting consolidation ratios.
4. DDR5-4800 throughput doubles the peak transfer rate of previous generations, accelerating real-time analytics and reducing latency in heavily virtualized environments.
5. 1.1-volt operation lowers power consumption per DIMM, directly cutting cooling demands and energy costs across hyperscale data center fleets.

Why These Specs Matter

The Samsung M321R2GA3BB0-CQK is a 16GB DDR5-4800 Registered DIMM engineered for mission-critical server environments. Its four defining characteristics directly address the operational pain points of modern data centers. First, the DDR5-4800 speed with CL40 latency delivers a significant bandwidth boost, dramatically reducing query response times in in-memory databases like Redis or SAP HANA, where every nanosecond counts. Second, integrated ECC continuously detects and corrects single-bit errors, preventing silent data corruption that can crash a virtualized cluster or taint financial records. Third, the Registered signal buffer stabilizes command and address signals, allowing you to populate all DIMM slots on a dual-socket server without signal degradation—a necessity when scaling a virtualization farm to host dozens of VMs. Finally, the single-rank x8 construction minimizes rank-switching overhead, ensuring consistent low-latency access patterns under the mixed, random workloads typical of consolidated servers. For you, this means uncompromised uptime, accelerated transactions, and a resilient infrastructure.

Endurance & Reliability

General Virtualization
For this 16GB DDR5-4800 RDIMM, a balanced hypervisor node should start with eight identical modules (128 GB total) to comfortably host 15–25 moderate VMs. Deploy them across all memory channels (typically one DIMM per channel on an 8-channel platform) to maximize bandwidth and keep ECC protection active.

In-Memory Database
In-memory workloads like Redis or SAP HANA demand both capacity and reliability. Populate all channels with these 16GB registered ECC modules to reach at least 256 GB, using dual‑rank or single‑rank configurations uniformly to avoid speed penalties. For production, leave spare DIMM slots to scale into terabytes as datasets grow.

High-Performance Computing (HPC)
HPC clusters thrive on bandwidth, so install one RDIMM per populated memory channel to achieve balanced throughput. A typical dual‑socket node benefits from 16 modules (256 GB) of this DDR5-4800 memory, which delivers sufficient capacity per core for large simulations while registered ECC maintains result integrity during multi‑day runs.

Verified Compatibility

Validated server RDIMM, rigorously tested. Compatible with Dell PowerEdge R760, HPE DL380 Gen11, Lenovo SR650 V3.

FAQ