General

Engineer's Note

This M393A2K40EB3-CWE module is a server-grade Registered ECC DDR4-3200 RDIMM, explicitly engineered for enterprise platforms where data integrity and uptime are paramount. Its single-rank x4 organization and CL22 latency deliver stable, registered signaling ideal for dense virtualization and memory-centric databases, ensuring critical workloads run with reliable error correction under sustained load.

Technical Specs & Insights

1. ECC protection silently corrects single-bit errors, preventing silent data corruption in mission-critical database and virtualization workloads.
2. Registered signal buffering stabilizes high-density memory configurations, enabling reliable operation across fully populated server motherboards.
3. A balanced 16GB capacity per module allows dense memory provisioning for virtualized environments without exceeding budget per core ratios.
4. 3200MT/s transfer rate elevates memory bandwidth per channel, accelerating in-memory analytics and reducing latency for concurrent VM requests.
5. Single Rank x4 organization optimizes signal integrity and reduces bus loading, sustaining consistent throughput under heavy multi-processor workloads.

Why These Specs Matter

As data centers consolidate virtual machines and run in-memory databases like SAP HANA, memory errors and bottlenecks are simply unacceptable. The Samsung M393A2K40EB3-CWE DDR4-3200 RDIMM eliminates these risks through four crucial characteristics. ECC instantly corrects single-bit corruptions, so a flipped bit during a live migration or a financial transaction never cascades into silent data loss that could topple your hypervisor. The Registered clock driver lets you pack every channel with multiple DIMMs while preserving signal integrity — this is what makes scaling to terabyte-level memory pools possible for large virtualization farms. Its Single Rank x4 architecture strikes a delicate balance: it reduces electrical loading for clean command execution, yet still feeds the high throughput that real-time database queries demand, shaving nanoseconds off every response. Operating at 1.2V and 3200MT/s, the module delivers consistent bandwidth without thermal stress. This is memory engineered so your reliability, scale, and speed stay uncompromised.

Endurance & Reliability

This 16GB DDR4-3200 ECC Registered DIMM (RDIMM) is designed for server platforms.

General Virtualization
Populate one 16GB single-rank RDIMM per memory channel to achieve full 3200 MT/s speed. A dual-socket server with 8 channels per CPU can host 8 modules (128GB) for dozens of VMs; for higher density, add a second identical DIMM per channel, yielding 256GB at slightly reduced speed.

In-Memory Database
Maximize capacity by populating two 16GB DIMMs per channel in a balanced configuration. This achieves 512GB on a 16-slot dual-socket server, running at 2933 MT/s. The ECC protection and single-rank x4 design ensure data integrity and predictable latency for in-memory workloads like Redis or SAP HANA.

High-Performance Computing (HPC)
Drive maximum bandwidth by installing one DIMM per channel only, operating at the full 3200 MT/s. A fully populated 16-slot server with these single-rank modules delivers 256GB of balanced, low-latency memory for simulation codes. Avoid mixing ranks to sustain clock speed and interleaving efficiency.

Verified Compatibility

Samsung DDR4 RDIMM M393A2K40EB3-CWE: rigorously tested and compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 V2.

FAQ