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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 x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Optimized for server platforms, this DDR5-4800 RDIMM is ideal for memory-intensive workloads such as virtualization and in-memory databases where data integrity is critical. Its dual-rank x8 organization maximizes bandwidth efficiency via rank interleaving, while the registered signal type and ECC combine to maintain rock-solid stability and error correction under sustained 24/7 operation.
1. ECC protection continuously corrects single-bit memory errors, preventing silent data corruption in virtualized clusters running transactional databases around the clock.
2. Registered clock drivers buffer command and address signals, ensuring signal integrity across fully populated channels and enabling large memory footprints for dense server racks.
3. 32GB capacity per module supplies ample headroom for demanding hypervisor workloads, letting operators pack more containers and VMs onto each physical node.
4. 4800MT/s DDR5 speed doubles the burst rate over previous generations, feeding high-frequency CPU cores with the bandwidth required for real-time analytics and AI inference microservices.
5. Dual rank interleaving parallelizes access across internal banks, sustaining peak data throughput when multiple tenants simultaneously query large in-memory datasets.
As a server-class DDR5 Registered DIMM, the Samsung M321R4GA3BB0-CQKUE is purpose-built for mission-critical enterprise workloads where data integrity and relentless uptime are non-negotiable. Its four defining characteristics translate directly into operational resilience. The ECC circuitry silently detects and corrects single-bit memory errors, a vital safeguard when a flipped bit in an in-memory database like SAP HANA could corrupt a financial transaction or a patient record. Meanwhile, the registered signal buffering stabilizes command and address lines, allowing you to fully populate all memory channels in a dense virtualization cluster hosting dozens of virtual machines without signal degradation; this means predictable performance as you scale, not random crashes under load. The dual-rank x8 organization exploits rank interleaving to boost effective bandwidth during large dataset transfers, so a Redis instance serving cached queries can sustain lower latency even as concurrency spikes. Operating at a modest 1.1V on the DDR5-4800 standard, the module balances 38.4 GB/s of raw throughput with refined energy efficiency, trimming power budgets across a rack of hypervisors. For your virtualized infrastructure or real-time analytics fabric, this memory eliminates the trade-off between capacity, speed, and data trust, delivering the stability your SLAs depend on.
This is a 32GB DDR5-4800 ECC Registered RDIMM, purpose-built for dual-socket server platforms where data integrity and large memory footprints are critical. Use these guidelines to plan capacity for common enterprise workloads.
General Virtualization
Balance memory across all memory channels to avoid NUMA bottlenecks. For a typical dual-socket server with eight channels per CPU, populate two DIMMs per channel (2DPC) using 16 modules—8 per socket—for a total of 512 GB. This configuration delivers ample headroom for dozens of mixed-VM workloads while preserving full memory bandwidth.
In-Memory Database
Maximize capacity per socket to keep entire datasets in RAM. Install one DIMM in every available slot (2DPC, 16 modules per server) to reach 512 GB per socket or 1 TB in a two-socket system. The combination of Registered ECC and dual-rank x8 organization ensures stable, high-density operation for Redis, SAP HANA, or similar latency-sensitive platforms.
High Performance Computing
Optimize for sustained bandwidth rather than raw capacity. Configure one DIMM per channel (1DPC) across both sockets—16 modules total—yielding 512 GB of balanced, high-speed memory. Dual-rank modules maximize per-channel bandwidth, and the uniform population pattern minimizes jitter, making this ideal for simulation, modeling, and tightly coupled parallel jobs.
Rigorously tested, this DDR5 ECC RDIMM fits Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R4GA3BB0-CQKUE with other memory modules of different brands or speeds?
A: Mixing different brands or speeds is not recommended for registered server memory. Doing so may cause instability, ECC errors, or prevent the system from booting. Identical modules ensure reliable synchronous operation.
Q: Is this memory compatible with my Intel and AMD server platforms?
A: This DDR5-4800 RDIMM is compatible with select 4th Gen Intel Xeon Scalable and AMD EPYC 9004 series platforms that support registered ECC DDR5 at 4800 MT/s. Verify your server board's QVL for exact model support.
Q: What is the recommended DIMM population order for optimal performance on a dual-socket server?
A: Follow the motherboard's memory population guide, typically populating identical DIMMs per channel starting from the farthest slot. Balance across all memory channels and populate both sockets symmetrically for optimal interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-standard registered ECC server DIMM operating at PC5-38400 (DDR5-4800) with CL40 timings. Overclocking and XMP are not supported, as server memory prioritizes stability and data integrity.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. Enterprise-grade RDIMMs like this Samsung original module exhibit an extremely low annualized failure rate (AFR), typically well below 0.5% under normal operating conditions.