General

Engineer's Note

Designed for enterprise servers and high-density compute platforms, this 96 GB DDR5-6400 Registered ECC RDIMM excels in memory-intensive virtualization, in-memory databases, and mission-critical workloads where data integrity is non-negotiable. Its dual-rank x4 organization and CAS 46 latency deliver a balance of high bandwidth and robust signal integrity, while ECC with registered buffering ensures stable, error-resilient operation across multi-DIMM channels.

Technical Specs & Insights

1. A dense 96GB capacity per stick enables higher virtual machine consolidation, reducing server footprint while keeping large in-memory databases fully resident for real-time decisions.
2. DDR5 technology brings on-die ECC and doubled bank groups, fortifying data integrity and ensuring smooth performance under the heavy parallelism of enterprise analytics platforms.
3. 6400 MT/s transfer rate supplies the sustained bandwidth to fully saturate modern multi-core server CPUs, eliminating memory bottlenecks during concurrent AI training and inference jobs.
4. Side-band ECC corrects transient errors on the fly, a non-negotiable safeguard for financial ledgers and mission-critical ERP systems where data corruption cannot be tolerated.
5. Dual Rank x4 organization interleaves access across banks to optimize channel utilization, keeping latency low and throughput predictable for latencysensitive containerized microservices.

Why These Specs Matter

The Samsung M321RYGA0PB2-CCPKC is a server-class DDR5 RDIMM engineered for mission-critical data center workloads, and its four defining characteristics directly translate into infrastructure resilience where it matters most. First, the combination of ECC and Registered signal buffering transforms raw capacity into trusted capacity. In a virtualized cluster running dozens of financial transaction VMs, a single undetected bit flip can corrupt a database commit or crash a hypervisor; ECC scrubbing catches these errors in-flight, while the on-module register isolates the memory bus from electrical loading, preserving signal integrity even as you populate all DIMM slots to scale to terabytes. Second, the 96GB density achieved through a Dual Rank x4 organization gives you a much larger memory footprint per socket, which keeps latency-sensitive applications like an in-memory Redis cache or SAP HANA from ever touching slower NVMe storage. Third, the DDR5-6400 speed delivers 51.2 GB/s of peak bandwidth, which becomes a hard performance multiplier when multiple VMs contend for memory access during peak hours. Together, these traits mean you can consolidate more tenants per physical host without sacrificing data integrity, response time, or uptime—directly lowering your total cost of ownership in environments where every millisecond of latency and every bit of data accuracy is non-negotiable.

Endurance & Reliability

General Virtualization
This 96GB RDIMM operates at DDR5-6400 with ECC and registered signaling, ideal for dense VM hosts. Deploy six modules across a dual-socket platform (e.g., 6 × 96GB = 576GB total) to balance cost, capacity, and the memory bandwidth required for 50+ moderate VMs. Stick to one DIMM per channel (1DPC) at 6400MT/s to avoid clock-speed drops on modern Xeon or EPYC servers.

In-Memory Database
Low-latency, high-capacity requirements make this module a strong fit for Redis, Memcached, or SAP HANA. Populate all eight channels in a single-socket server with one 96GB RDIMM each (768GB total per node) to maximize capacity while maintaining rated speed. The dual-rank x4 design enhances bank-level parallelism, crucial for sustained random access throughput under heavy OLTP workloads.

High-Performance Computing (HPC)
For memory-bandwidth-bound simulations, install 12 identical modules in a dual-socket server configured with balanced NUMA population (6 per CPU, 1DPC). This yields 1.152TB of registered DDR5-6400, delivering the high bandwidth and ECC integrity essential for CFD, weather modeling, and large-scale finite-element analysis. The CL46 latency is acceptable given DDR5’s burst-oriented architecture and the workload’s streaming access patterns.

Verified Compatibility

Tested rigorously, this 96GB DDR5-6400 RDIMM fits Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.

FAQ