General

Engineer's Note

Designed for enterprise server environments, this Samsung DDR4-2933 Registered DIMM leverages ECC and a single-rank x4 organization to deliver robust data integrity and reduced electrical loading on the memory bus, making it ideal for sustained high-capacity deployments in virtualization clusters and in-memory databases. Its 1.2V operating voltage and PC4-23400 bandwidth ensure reliable, power-efficient performance under constant, mission-critical workloads where registered signal buffering stabilizes large memory populations.

Technical Specs & Insights

1. ECC protection silently corrects single-bit memory errors in real time, preserving data integrity for financial transactions and mission-critical databases where even silent corruption is unacceptable.
2. Registered signal type buffers command and address buses to maintain signal integrity across fully populated memory channels, enabling seamless scaling to hundreds of gigabytes in virtualization hosts without stability trade-offs.
3. 2933 MT/s speed supplies the sustained high throughput required to feed multiple CPU cores simultaneously, reducing latency in heavy consolidation scenarios like virtual desktop infrastructure and containerized microservices.
4. 16GB capacity per module offers a dense memory footprint that maximizes the number of active virtual machines per physical server, optimizing total cost of ownership in hyper-converged clusters.
5. Single Rank x4 organization lowers electrical loading per channel, allowing servers to maintain high clock speeds and reliable operation even when all DIMM slots are occupied in large-scale deployments.

Why These Specs Matter

When you are running a mission-critical virtualization cluster or an in-memory database like SAP HANA, the DDR4-2933 Registered DIMM with ECC, such as module M393A2K40CB2-CVFBY, is not just a component—it is the foundation of your data integrity and uptime. The ECC functionality actively detects and corrects single-bit memory errors caused by cosmic rays or electrical noise, preventing silent data corruption that could crash a hypervisor hosting dozens of virtual machines or introduce calculation errors in a financial trade log. Its Registered architecture buffers the command and address signals, which directly translates into rock-solid stability when you fully populate all memory channels across a multi-socket server, eliminating the signal-loading issues that plague unbuffered modules at scale. The Single Rank x4 configuration at 2933 MT/s delivers an optimal balance of bandwidth and latency, enabling a memory analytics platform to scan massive datasets consistently without the rank-interleaving penalties that slow down complex query throughput. Finally, operating at the industry-standard 1.2V, this module helps keep your power budget in check across an entire rack of servers, lowering cooling costs while maintaining peak clock rates. For the data center operator, this means you deploy with confidence, knowing your infrastructure can handle heavy consolidation ratios and real-time processing without compromise.

Endurance & Reliability

This is a server-grade DDR4-2933 Registered ECC memory module (RDIMM) – 16GB capacity, single-rank x4, CL21, 1.2V. It’s engineered for enterprise servers that demand data integrity, scalability, and stable performance under continuous load.

General Virtualization
Deploy these 16GB RDIMMs in a balanced configuration across all memory channels. For a dual-socket virtualization host, populating each channel with at least one DIMM maximizes bandwidth and reduces latency, enabling smooth operation of dozens of VMs. A common building block is 8 or 16 identical modules (128–256GB) per server, leaving room for future expansion while preserving uniform channel interleaving.

In-Memory Database
Memory-resident databases like SAP HANA or Redis require both capacity and fault tolerance. Populate the maximum number of supported DIMM slots per socket with these ECC RDIMMs to achieve a large, reliable memory footprint (often 384GB–1.5TB+). Full channel population with identical single-rank x4 modules ensures the highest data throughput and lowest latency, while registered ECC prevents silent corruption in mission-critical transactional workloads.

High Performance Computing (HPC)
Bandwidth-hungry HPC workloads benefit from this module’s 2933MT/s speed and single-rank design. Install a matched set of 6 or 8 DIMMs per socket on platforms with 6 or 8 memory channels to saturate the memory bus. Identical RDIMMs used in symmetric configurations avoid frequency down-clocking, delivering the consistent high bandwidth essential for large-scale simulations, computational fluid dynamics, or molecular modeling.

Verified Compatibility

This rigorously tested server memory is compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ