General

Engineer's Note

Designed as a DDR5-4800 Registered ECC module, this 32GB RDIMM is purpose-built for server platforms running virtualization, in-memory databases, and other mission-critical workloads where data integrity is non-negotiable. Its dual-rank x8 organization and registered signaling deliver high signal stability and bandwidth efficiency under heavy multi-DIMM configurations, while ECC actively corrects single-bit errors to prevent silent data corruption at 4800MT/s with CL40 latency.

Technical Specs & Insights

1. A 32GB capacity per module enables dense memory configurations, allowing a single server to host significantly more virtual machines and maximize consolidation ratios.
2. DDR5 technology provides a generational leap in bandwidth and power efficiency, keeping latency-sensitive enterprise applications responsive under heavy concurrent loads.
3. Dual Rank x8 organization interleaves banks to fully utilize memory channels, elevating throughput for multi-threaded workloads like large-scale database queries.
4. ECC error correction continuously detects and corrects single-bit faults, safeguarding data integrity in financial processing and other mission-critical deployments.
5. Registered signal buffering maintains clean command and address signals across multiple DIMMs, ensuring rock-solid stability when scaling to terabytes of memory in always-on data centers.

Why These Specs Matter

When every transaction in your virtualized cluster or in-memory database hinges on absolute reliability, the Samsung M321R4GA3BB6-CQK DDR5 RDIMM redefines what you can expect from server memory. Its registered architecture buffers command and address signals, enabling you to populate all channels with 32 GB dual-rank modules without signal degradation—vital for dense virtualization hosts where dozens of VMs compete for predictable latency. Underneath, integrated ECC silently corrects single-bit errors caused by cosmic radiation or electrical noise, turning potential corruption in a 24/7 financial database into a non-event. The dual-rank x8 organization optimizes interleaving, so your analytics engine sustains higher bandwidth during concurrent read-write operations, shrinking query times. Operating at just 1.1 V, it also trims thermal load across a rack full of nodes, prolonging MTBF in hyper-converged infrastructure. Here, data integrity, scalable capacity, and steady signal integrity converge—not as specifications, but as the difference between a minor glitch and a major outage.

Endurance & Reliability

The provided module is a server‑grade DDR5 Registered DIMM (RDIMM) with ECC, 32 GB capacity, dual‑rank x8 organization, and 4800 MT/s speed. Capacity planning for three common enterprise workloads using this DIMM is outlined below.

General Virtualization
Balance capacity and bandwidth by populating all eight memory channels per CPU with one 32 GB RDIMM (1DPC). This yields 256 GB per socket, enough for dozens of moderate VMs, while maintaining the full DDR5‑4800 speed. The registered ECC architecture ensures stability for always‑on hypervisors and live migration.

In‑Memory Database
When the entire dataset must live in RAM, install two dual‑rank 32 GB DIMMs per channel (2DPC) to reach 512 GB per socket. Density is prioritized over peak frequency, though dual‑rank interleaving still provides strong parallelism. ECC is essential for protecting in‑memory tables and indexes from silent corruption during large writes.

High‑Performance Computing (HPC)
Memory‑bandwidth‑bound simulations demand one 32 GB dual‑rank RDIMM per channel (1DPC) to sustain the highest 4800 MT/s throughput and CL40 latency. A set of eight identical modules per node delivers uniform bandwidth to every core and avoids inter‑rank contention, which is critical for scaling tightly‑coupled parallel workloads.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.

FAQ