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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 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 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
The Samsung M321R8GA0BB0-CQKUE is a 64GB DDR5-4800 Registered ECC RDIMM engineered for enterprise servers and workstations, where its dual-rank configuration enhances memory interleaving for improved throughput in virtualization and in-memory database workloads. The registered signal type and integrated ECC deliver superior signal integrity and data reliability at the low operating voltage of 1.1V, ensuring 24/7 stability in mission-critical deployments.
1. A 64GB capacity per module maximizes virtual machine density on a single server node, enabling heavier consolidation without incurring performance-killing swaps to storage.
2. ECC silently corrects single-bit memory faults in real time, protecting financial transactions and long-running analytical jobs from silent data corruption.
3. Registered clock drivers decouple the memory controller from direct chip loads, preserving signal integrity so you can populate all channels for maximum capacity in virtualized clusters.
4. Dual rank access interleaving saturates the DDR5 channel with overlapped operations, raising effective throughput for latency-sensitive in-memory databases.
5. The DDR5-4800 interface delivers a steep bandwidth uplift over previous generations, slashing data-fetch stalls under concurrent user requests in web-serving farms.
Designed for modern data centers, the Samsung M321R8GA0BB0-CQKUE is a 64GB DDR5-4800 Registered DIMM engineered to eliminate the hidden risks that keep IT managers awake at night. In a dense virtualization cluster running dozens of sensitive workloads, a single undetected bit flip can corrupt a financial transaction or crash a critical VM. The integrated ECC engine actively detects and corrects such errors in real time, preserving data integrity at a silicon level where cosmic radiation or electrical noise would otherwise threaten uptime. Simultaneously, the Registered signal architecture buffers command and address lines, stabilizing the memory controller even when all 16 DIMM slots per server are populated—this directly translates to the confidence to scale memory capacity without signal degradation or unexpected reboots.
Inside an in-memory database like SAP HANA or a large Redis cache, throughput is non-negotiable. The dual-rank organization of this module interleaves two internal 32GB ranks on a single stick, enabling the memory controller to pipeline commands and saturate the 4800 MT/s bandwidth far more effectively than a single-rank design. Paired with the efficiency of 1.1V DDR5 operation, this means your analytics queries complete faster, your real-time dashboards refresh without stutter, and your total cost per IOPS drops measurably because the same server platform can sustain higher transactional loads without throttling. For the enterprise, it is not just memory—it is a foundation for nonstop data-driven operations.
General Virtualization
For dense virtual machine hosting, deploy eight 64 GB RDIMMs across a dual-socket server’s balanced memory channels to yield a 512 GB footprint. This configuration maximizes memory bandwidth via one DIMM per channel (1DPC) at DDR5-4800, avoiding the speed drops common with higher DPC ratios while leaving expansion room. It supports strong VM consolidation ratios for mixed workloads without oversubscribing memory.
In-Memory Database
Capacity and data integrity are paramount—populate 16 modules per server (1 TB total) using dual-rank RDIMMs to exploit their large density and ECC protection. Opt for a balanced 2DPC layout if your platform supports it without severe frequency penalties, or split across two nodes in a clustered database for both headroom and high availability. The registered buffer ensures stable signal quality at full load.
High-Performance Computing (HPC)
Prioritize bandwidth over maximum capacity. Install eight 64 GB RDIMMs in a 1DPC, eight-channel configuration per CPU to sustain DDR5-4800 speed and deliver over 300 GB/s of memory throughput. For bandwidth-bound simulations, supplement with additional, identically configured nodes rather than overloading a single server’s channels, preserving low latency (CL40) and predictable performance during parallel jobs.
Rigorously tested, this server RDIMM is validated for Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R8GA0BB0-CQKUE with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands or speeds is strongly discouraged. It may cause instability, reduce performance, and void warranty. Use identical modules to maintain signal integrity and reliable ECC operation.
Q: Is this memory compatible with my system?
A: This DDR5 Registered ECC module is designed for server platforms such as Intel Xeon Scalable (Sapphire Rapids) or AMD EPYC 9004 series. Please verify the memory QVL of your specific server board.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server board’s guide for balanced channel population, typically one DIMM per channel first. Given its dual-rank design, symmetric placement maximizes interleaving and memory bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No, this RDIMM adheres to JEDEC standards at DDR5-4800. It does not support overclocking or XMP profiles, prioritizing 24/7 data integrity and rock-solid stability for enterprise environments.
Q: What warranty and typical failure rate can I expect?
A: It is backed by a 1-year warranty. Our modules are rigorously tested to deliver an annualized failure rate well below industry average, ensuring dependable performance for critical server workloads.