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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This Samsung 16GB DDR4-3200 RDIMM (M393A2K43DB2-CWEGQ) is a server-grade memory module purpose-built for enterprise platforms running virtualization, in-memory databases, and data-critical workloads. Its dual-rank x8 configuration optimizes memory interleaving for higher throughput, while the registered signal type and integrated ECC deliver superior signal integrity and single-bit error correction essential for 24/7 stability in multi-DIMM servers.
1. ECC memory detects and corrects single-bit errors, safeguarding transactional databases and preventing silent data corruption in 24/7 server environments.
2. Registered signal type boosts signal integrity, enabling high-capacity memory populations essential for large-scale virtualization and in-memory analytics.
3. Dual-rank interleaving maximizes bandwidth utilization, delivering consistent low-latency access under heavy multi-tenant workloads.
4. A 3200MT/s transfer speed supplies ample throughput for concurrent containerized microservices and real-time data processing pipelines.
5. A 16GB density per module provides a balanced sweet spot for dense server configurations, accommodating numerous virtual machines without excessive cost.
The Samsung M393A2K43DB2-CWEGQ is a 16GB DDR4-3200 Registered ECC DIMM engineered for server environments where failure is not an option. In a virtualized cluster running dozens of workloads, ECC memory is your silent guardian against silent data corruption. A single-bit flip caused by cosmic radiation can crash a hypervisor or corrupt a financial transaction; ECC detects and corrects these errors in real time, preserving data integrity around the clock. Paired with the Registered signal buffer, this RDIMM stabilizes the command bus when multiple DIMMs populate a server, allowing you to confidently scale to 512GB or more without compromising signal quality—critical for dense virtualization hosts or large in-memory databases like SAP HANA.
The dual-rank x8 design increases internal bank counts, enabling interleaved data accesses that boost throughput by 10-15% over single-rank modules under concurrent query loads. At 3200MT/s with CL22 latency and a low 1.2V operating voltage, this module delivers the memory bandwidth demanded by real-time analytics while keeping thermals in check across a fully populated rack. For database administrators and IT architects, this translates directly into faster transaction processing, reduced query latency, and ultimately, a tighter total cost of ownership through reliable, efficient performance that never compromises on uptime.
General Virtualization
For a typical hypervisor hosting multiple virtual machines, memory capacity and reliability are paramount. Using this 16GB DDR4-3200 RDIMM, populate at least four modules across separate channels to enable balanced memory access and maximize bandwidth; a common configuration is 4×16GB for a 64GB total, allowing moderate consolidation. Leveraging ECC protection and Registered buffer ensures stability for mixed workloads without risking data corruption in multi-tenant environments.
In-Memory Database
In-memory databases like Redis or SAP HANA thrive on low latency and large, error-free capacity. Deploy these dual-rank x8 RDIMMs in a fully populated configuration — for example, 8×16GB or more per socket — to achieve high aggregate bandwidth and capitalize on rank interleaving. The Registered ECC design safeguards in-flight data integrity, which is critical when every calculation relies on rapid, correct memory access under constant write pressure.
High-Performance Computing (HPC)
HPC clusters demand sustained throughput and resilience under extreme parallel loads. Fill all memory channels equally with identical 16GB RDIMMs (e.g., 6×16GB per node for a six-channel platform) to maintain symmetric memory architecture and avoid bottlenecks. The 3200MT/s speed paired with CL22 and dual-rank organization delivers consistent bandwidth for simulation or modeling tasks, while ECC corrects soft errors that could otherwise invalidate long-running, compute-intensive jobs.
Tested Samsung 16GB DDR4-3200 RDIMM: compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo SR650 V3, and more.
Q: Can I mix this M393A2K43DB2-CWEGQ with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands or speeds is not recommended. Even minor variance can cause POST failures, signal integrity issues, and system instability on server platforms.
Q: Is this memory compatible with my system?
A: This DDR4-3200 ECC Registered DIMM is compatible with servers using Intel Xeon Scalable or AMD EPYC processors. Verify your motherboard's QVL for this specific Samsung M393A2K43DB2-CWEGQ part number.
Q: What is the recommended DIMM population order for optimal performance?
A: Always follow your server board’s manual. Typically, populate the farthest slot from the CPU in each channel first, balancing identical DIMMs across all memory controllers for optimal interleaving and bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant DDR4-3200 CL22 RDIMM operating at 1.2V. It does not support XMP or any form of overclocking; it runs exclusively at standard speed and timings for reliability.
Q: What warranty and typical failure rate can I expect?
A: It includes a 1-year warranty. This Samsung-built enterprise RDIMM has a very low annualized failure rate under 1%, backed by rigorous test and burn-in procedures for 24/7 operation.