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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 | Registered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
The Samsung M393A2K43EB3-CWEBY is a server-grade DDR4-3200 Registered DIMM with ECC, purpose-built for enterprise platforms running memory-intensive workloads such as virtualization, in-memory databases, and critical transactional systems. Its dual-rank x8 configuration and CL22 latency deliver robust signal integrity and high data throughput under sustained loads, while the onboard ECC and registered signaling ensure end-to-end data reliability in 24/7 operation.
1. With 16GB per module, it enables dense memory configurations that support more virtual machines and containers per server, maximizing consolidation ratios in data centers.
2. ECC protection automatically corrects single-bit errors, safeguarding against data corruption in always-on enterprise applications and financial processing.
3. Registered buffering isolates the memory controller from load increases, ensuring signal integrity and stability across fully populated multi-channel server boards.
4. A 3200 MT/s data rate delivers the high throughput needed for real-time analytics, AI inference, and high-frequency trading platforms.
5. Dual Rank x8 architecture keeps both rank banks active, improving command bus efficiency and providing sustained bandwidth under heavy multi-threaded workloads.
When every transaction matters and downtime is unthinkable, the M393A2K43EB3-CWEBY is not just a memory module—it is the integrity layer your server infrastructure depends on. As a 16GB DDR4-3200 RDIMM with ECC and dual‑rank construction, it directly answers the most painful realities of modern data centers. The registered buffer (Registered DIMM) stabilizes signal paths across banks of modules, making it the only reliable choice for dense virtualization clusters: you can confidently pack dozens of VMs onto a single node without memory‑bus instability bringing the host down during a live migration. Simultaneously, single‑bit error correction (ECC) becomes non‑negotiable when memory‑resident databases like Redis or SAP HANA hold billions of rows in RAM—a flipped cosmic ray bit silently corrupts financial records, but ECC detects and repairs it in‑flight, preserving data fidelity. The dual‑rank x8 organization boosts effective bandwidth through rank interleaving, so your hypervisor or in‑memory analytics engine sees consistently lower latency under concurrent load. At 3200MT/s and CL22, this Samsung module balances speed with thermal restraint, sustaining around‑the‑clock operation in 1U enclosures where airflow is scarce. Whether it is a VMware farm processing patient records or a fraud‑detection database running in‑memory, this RDIMM transforms raw capacity into predictable, trustworthy performance—because in the server world, silent corruption is the costliest failure of all.
General Virtualization
For virtualization hosts, populate all memory channels symmetrically with identical 16GB dual-rank RDIMMs to maximize capacity and bandwidth. A typical dual-socket server using eight or more modules enables balanced NUMA access and reliable overcommitment, while ECC ensures data integrity for multiple guest VMs. Aim for 256‑512GB total using 16GB sticks to support 30–50 typical workloads without swapping.
In-Memory Database
In-memory databases demand high capacity and low latency. The dual-rank x8 organization at 3200MT/s improves bank-level parallelism, accelerating large key-value stores and caching layers. Deploy a full channel-balanced set of these RDIMMs—preferably one or two modules per channel—to sustain the transaction pressure and avoid throttling under heavy read/write loads.
High-Performance Computing
HPC clusters require maximum sustained memory bandwidth and resilience. Install a single 16GB RDIMM per channel (1DPC) across all memory channels to maintain 3200MT/s without speed degradation. The registered ECC design guarantees signal stability in dense, power-hungry nodes, while the dual-rank configuration delivers consistent bandwidth for tightly parallelized MPI or seismic modelling jobs.
Rigorously tested server memory compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 V2, and more.
Q: Can I mix this M393A2K43EB3-CWEBY with other memory modules of different brands or speeds?
A: Mixing RDIMMs of different brands, speeds, or rankings is not recommended. It can cause system instability, unbootable states, or reduce memory to base speed. Always populate servers with identical, validated modules for guaranteed compatibility.
Q: Is this memory compatible with my system?
A: This DDR4-3200 ECC Registered RDIMM is designed for server platforms supporting 288-pin RDIMM, such as Intel Xeon Scalable (1st/2nd Gen) and AMD EPYC 7001/7002 series. Verify your motherboard or server vendor's qualified vendor list (QVL).
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per channel following the server board's guidelines, typically starting from the furthest slot per channel. Symmetrical loading across memory channels ensures balanced interleaving and maximum throughput; always consult the system manual.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise RDIMM with ECC, this module adheres strictly to JEDEC DDR4-3200 (PC4-25600) standard timings at 1.2V. It does not support XMP or overclocking, prioritizing data integrity and 24/7 stability.
Q: What warranty and typical failure rate can I expect?
A: This memory is covered by a 1-year warranty. Enterprise-grade RDIMMs exhibit very low failure rates, typically an annualized failure rate (AFR) well below 0.5% under normal operating conditions, ensuring exceptional long-term reliability.