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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 3200 MHz |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | UDIMM |
This is a DDR4-3200 ECC Unbuffered DIMM engineered for workstations and entry-level server platforms that demand data integrity without the cost of registered memory. Its dual-rank x8 organization boosts memory interleaving efficiency, while the ECC capability and CL22 latency ensure reliable operation for critical tasks such as content creation, financial modeling, and light virtualization.
1. ECC error correction silently detects and fixes single-bit flips, preserving data integrity for financial transactions and virtualized databases that cannot tolerate silent corruption.
2. Dual Rank x8 organization boosts bank‑level parallelism, sustaining high memory throughput when multiple VMs contend for resources under dense consolidation.
3. UDIMM unbuffered design eliminates the register clock latency and extra power draw, suiting cost‑sensitive entry‑class servers and edge appliances that still demand ECC.
4. The 3200 MT/s interface keeps the processor’s memory pipe well fed, cutting response times for in‑memory analytics and accelerating real‑time decision workloads.
5. Sixteen‑gigabyte module capacity raises the memory ceiling in small‑form‑factor server boards, enabling more containers or lightweight hypervisor instances per node.
When deploying mission-critical virtualization clusters or in-memory databases, the Samsung M391A2K43DB1-CWEQY UDIMM ECC module directly translates its technical specifications into business resilience. Its error-correcting code is a frontline defense against silent data corruption caused by background radiation, ensuring that a single-bit flip will not silently poison financial records in a Redis cache or destabilize a VMware ESXi host running dozens of virtual machines. The DDR4-3200 speed and PC4-25600 bandwidth deliver 25.6 GB/s of throughput, noticeably shortening VM live-migration windows and accelerating large dataset queries in real-time analytics. Beneath the surface, the dual-rank x8 organization interleaves memory bank access, boosting sustained command efficiency when multiple virtual machines compete for I/O—you perceive this as smooth responsiveness under heavy consolidation loads rather than erratic latency spikes. Meanwhile, the 1.2V low-voltage design reduces thermal stress in dense rack environments, lowering cooling overhead and extending the service life of your 24/7 infrastructure. For systems engineers who treat uptime and data accuracy as non-negotiable, this module makes technical resilience tangible in every transaction.
This is a server-class memory module (DDR4-3200 ECC Unbuffered UDIMM, 288-pin, dual-rank x8) suited for entry-level servers and workstations where data integrity and moderate capacity are critical.
General Virtualization
Begin with two identical 16 GB modules (32 GB total) for lightweight virtual machine hosts, matched in the same memory channel for dual-channel operation. Scale to four modules (64 GB) to handle moderate VM density, populating all available channels equally. ECC UDIMMs help guard against soft errors during continuous guest operation.
In-Memory Database
Deploy four 16 GB modules (64 GB) as a baseline to keep substantial database tables in RAM and reduce storage I/O. Fill every memory channel with identical 1.2 V modules to maintain low-latency signal paths, while the dual-rank x8 organization enhances per-channel bandwidth. ECC is essential here—uncorrected bit flips can silently corrupt critical transactional data.
High-Performance Computing
Populate all memory channels with four or eight 16 GB UDIMMs (64–128 GB) to maximize per-node bandwidth for parallel workloads. The dual-rank configuration improves throughput under sustained streaming access patterns. ECC unbuffered memory upholds calculation fidelity over multi-day simulation runs, and using matched modules avoids speed degradation.
Stringently tested, compatible with Dell PowerEdge R350, HPE ProLiant DL20 Gen10, and Lenovo ThinkSystem SR250 V2.
Q: Can I mix this M391A2K43DB1-CWEQY with other memory modules of different brands or speeds?
A: Mixing is not recommended. This is ECC UDIMM server memory, and combining it with non-ECC or different speed modules may cause instability, disable ECC, or force all DIMMs to the lowest common speed.
Q: Is this memory compatible with my system?
A: It is compatible with servers/workstations using Intel Xeon E-2300/2100 or AMD Ryzen Pro platforms that support unbuffered ECC DDR4-3200 UDIMMs. Verify your board's QVL for this 288-pin ECC module.
Q: What is the recommended DIMM population order for optimal performance?
A: Install identical 16GB Dual Rank x8 UDIMMs in matched sets, populating memory channels symmetrically according to your server board manual—typically filling slots 1 and 3 first to maintain balanced interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. As an ECC server UDIMM, it operates at fixed JEDEC DDR4-3200 with CL22 timings. XMP and overclocking are not supported; stability and data integrity are prioritized over higher frequencies.
Q: What warranty and typical failure rate can I expect?
A: This module comes with a one-year warranty. Its ECC capability and rigorous screening ensure a very low annualized failure rate, typically under 0.1% in qualified server environments with adequate cooling.