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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 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 | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Targeted for enterprise servers, this 32GB DDR5-4800 RDIMM leverages registered signaling and ECC to ensure uncompromised data integrity in mission-critical workloads like virtualization and in-memory databases. Its dual-rank x4 organization boosts bandwidth efficiency and capacity density, making it an optimal choice for scalable, memory-hungry platforms where reliability under heavy load is paramount.
1. Registered signal type stabilizes high-capacity server memory channels by buffering command and address signals, enabling dense deployments without signal integrity compromises in large-scale data centers.
2. ECC protection eliminates silent data corruption risks by detecting and correcting single-bit errors, a non-negotiable safeguard for financial ledgers and scientific computing accuracy.
3. 32GB per DIMM packs enough density to triple virtual machine counts per rack unit, directly reducing per-VM licensing and power costs in hyper-converged infrastructure.
4. DDR5-4800 bandwidth nearly doubles the throughput of legacy DDR4 platforms, cutting query response times in memory-hungry in-memory databases and real-time analytics.
5. Dual Rank x4 organization leverages rank interleaving to fully utilize memory bus cycles, sustaining consistent low-latency performance even under bursting multi-tenant workloads.
The M321R4GA0BB0-CQKMS is a 32 GB DDR5-4800 registered DIMM purpose-built for enterprise server environments where every bit of data and every watt of power counts. Its ECC actively corrects single-bit errors before they become application faults, meaning your virtualized cluster stays protected from silent memory corruption that could cascade across dozens of VMs and trigger costly, hard-to-diagnose outages. The registered clock driver keeps signal rock-stable even with every slot populated in a dual-socket server, letting you confidently scale to terabytes of RAM without derating speed—a non-negotiable advantage for dense consolidation on VMware ESXi or Hyper-V. The dual-rank x4 organization unlocks rank interleaving, which boosts effective bandwidth and cuts transaction latency for in-memory databases such as Redis or SAP HANA, where microseconds directly impact revenue. Finally, the DDR5-4800 interface delivers up to 50 percent more throughput than DDR4, while the 1.1 V supply reduces power draw and cooling overhead in always-on data centers. This combination of error resilience, massive capacity stability, parallel access acceleration, and energy-efficient bandwidth translates directly into higher uptime, responsive virtualized workloads, and a meaningfully lower total cost of ownership.
General Virtualization
This 32 GB DDR5-4800 ECC RDIMM is ideal for consolidating multiple VMs on a dual-socket server. To balance capacity and memory bandwidth, install six or eight identical modules per CPU (12–16 DIMMs total), yielding 192–256 GB per host while populating all memory channels evenly. The registered dual-rank x4 design ensures stable, error-corrected operation under mixed workloads.
In-Memory Database
For latency‑sensitive in‑memory databases (e.g., Redis, SAP HANA), fill every channel of the memory controller to maximize throughput. A common configuration uses 16 of these 32 GB modules per two‑socket node for 512 GB total, providing ample capacity for large datasets and leveraging dual‑rank parallelism. Always configure symmetric DIMM population across sockets to avoid NUMA penalties.
High‑Performance Computing (HPC)
HPC nodes demand both high capacity and peak bandwidth. Populate all eight or twelve channels per socket with these 32 GB RDIMMs, reaching 256–384 GB per CPU while maintaining the rated 4800 MT/s speed. The dual‑rank x4 organization delivers better bank‑level parallelism than single‑rank alternatives, reducing access conflicts during memory‑intensive simulations and making it a strong foundation for scale‑out clusters.
Verified server DDR5 RDIMM, rigorously tested, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R4GA0BB0-CQKMS with other RDIMMs of different brands or speeds?
A: Mixing different brands or speeds is not advised for server environments; it risks instability and compatibility errors. For maximum reliability, always populate all channels with identical, validated modules.
Q: Is this memory compatible with my server system?
A: This DDR5-4800 Registered ECC DIMM typically supports Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC 9004 platforms. Confirm compatibility by checking your server motherboard's qualified vendor list (QVL).
Q: What is the recommended DIMM population order for optimal performance?
A: Refer to your server manual. Generally, install identical DIMMs in balanced configurations across all memory channels, starting from the farthest slot per channel to achieve full interleaved bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise-grade Registered DIMM, it strictly adheres to JEDEC DDR5-4800 standard timings. Overclocking or XMP is not supported; priority is 24/7 data integrity and stability.
Q: What warranty and typical failure rate can I expect?
A: This module is covered by a one-year warranty. Enterprise RDIMMs exhibit a very low annualized failure rate, typically below 0.5%, reflecting rigorous testing and high reliability for mission-critical workloads.