M393A2K40DB3-CWECO Samsung 16GB DDR4 3200MHz ECC Registered Memory

Samsung 16GB 3200MHz PC4-25600 Memory

The Samsung M393A2K40DB3-CWECO delivers reliable performance with advanced DDR4 SDRAM technology, designed for enterprise-grade systems requiring stability and speed.

General Information

• Brand Name: Samsung
• Part Number: M393A2K40DB3-CWECO
• Product Type: 16GB DDR4 Registered Memory

Technical Specifications

• Capacity: 16GB single module
• Technology: DDR4 SDRAM
• Speed Rating: 3200 MT/s (PC4-25600)
• Error Correction: ECC support for data reliability
• Signal Type: Registered DIMM for server optimization
• Latency: CL22 timing for balanced efficiency
• Rank Structure: Single Rank X4 design

Physical Attributes

• Form Factor: 288-pin RDIMM
• Voltage Requirement: 1.2V for energy efficiency

Compatibility

• Optimized for enterprise servers and workstations
• Supports high-performance computing environments
• Ideal for applications requiring stability and multitasking

Samsung 16GB Memory Overview

The Samsung M393A2K40DB3-CWECO 16GB DDR4 RDIMM represents a mature and highly optimized class of registered server memory designed to meet the sustained performance, reliability, and scalability demands of contemporary data centers. Built on DDR4 SDRAM technology and operating at 3200MHz with PC4-25600 bandwidth, this module aligns with server platforms that prioritize balanced throughput, predictable latency behavior, and long-term operational stability. The 288-pin RDIMM form factor enables signal integrity improvements through register buffering, a key architectural requirement for servers running dense memory configurations across multi-socket motherboards. As part of a broader server memory category, this type of DDR4 RDIMM is designed for systems that operate continuously under high utilization. It is engineered to integrate seamlessly with enterprise server chipsets from major CPU vendors that support DDR4 ECC registered memory, ensuring consistent performance across virtualization hosts, database engines, and application servers. The architecture supports the growing need for memory bandwidth while maintaining electrical stability as memory channels scale in capacity.

DDR4 Technology

DDR4 SDRAM introduced significant advancements over previous generations by increasing data transfer rates while reducing operating voltage. With a standard 1.2V requirement, this Samsung RDIMM module contributes to lower overall power consumption at scale, an important consideration for rack-dense environments. The 3200MHz data rate allows servers to feed modern multi-core processors more efficiently, minimizing bottlenecks in memory-intensive workloads such as analytics processing and in-memory caching. Platform alignment is a defining aspect of DDR4 RDIMM categories. Server motherboards designed for ECC registered memory rely on strict electrical and timing parameters. Samsung’s adherence to JEDEC specifications ensures predictable interoperability with supported platforms, reducing qualification cycles and simplifying system integration for enterprise IT teams.

Error Correction

ECC functionality is a cornerstone of professional server memory categories. The inclusion of error-correcting code enables the detection and correction of single-bit memory errors while identifying multi-bit faults. In enterprise environments where data accuracy is critical, ECC memory significantly reduces the risk of silent data corruption that can compromise databases, virtual machines, or transactional systems. This Samsung RDIMM operates with ECC at the hardware level, ensuring that error detection occurs transparently without impacting application performance. The x4 DRAM organization further enhances error correction effectiveness by allowing finer-grain fault isolation compared to wider x8 configurations, which is especially valuable in mission-critical deployments.

Single Rank x4

The single rank x4 configuration used in this memory module reflects a balance between performance predictability and reliability. Single rank modules reduce electrical loading on memory channels, supporting higher stable frequencies and simplifying memory training during system initialization. The x4 DRAM width supports stronger ECC schemes, making this configuration particularly suitable for enterprise and cloud infrastructure where uptime and data consistency are paramount. In multi-DIMM per channel environments, single rank RDIMMs can help maintain timing margins, contributing to stable operation across a wide range of server configurations. This makes the category attractive for system architects designing platforms intended for long service lifecycles.

Registered DIMM

Registered DIMMs incorporate a register between the memory controller and the DRAM chips, buffering command and address signals. This design reduces electrical load and improves signal integrity, enabling servers to populate more memory modules per channel without compromising stability. For enterprise servers that require high memory capacities, RDIMMs are the preferred solution. The Samsung M393A2K40DB3-CWECO belongs to this RDIMM category, making it suitable for configurations where capacity scaling is a priority. As workloads continue to grow in complexity, the ability to expand memory without sacrificing reliability becomes a strategic advantage for organizations managing evolving infrastructure demands.

288-Pin Form Factor

The standardized 288-Pin DDR4 RDIMM form factor ensures mechanical and electrical compatibility with a wide range of server motherboards. This uniformity allows data center operators to standardize on a single memory category across multiple server generations, simplifying inventory management and reducing operational complexity. Mechanical robustness is also an important factor in enterprise environments. Server memory modules are designed to withstand repeated thermal cycles and continuous operation, ensuring consistent contact integrity throughout their deployment lifecycle.

Performance

Operating at 3200MHz with a CAS latency of 22, this DDR4 RDIMM delivers a balance between throughput and latency that aligns with server workload profiles. While raw frequency contributes to bandwidth, latency stability is equally important for transactional applications and real-time processing systems. In enterprise memory categories, performance is evaluated not only by peak metrics but by sustained behavior under load. Samsung’s server-grade memory design emphasizes consistent timing characteristics, ensuring predictable application performance even during periods of high utilization.

Thermal

Thermal management is a critical consideration for server memory categories. Operating at 1.2V, DDR4 RDIMMs generate less heat compared to earlier generations, supporting higher density configurations within constrained rack environments. Lower thermal output also contributes to reduced cooling requirements, improving overall data center energy efficiency. Samsung’s manufacturing processes emphasize consistent thermal characteristics across modules, ensuring uniform behavior when multiple DIMMs are installed within the same system. This uniformity supports predictable airflow design and thermal planning.

Compatibility

This DDR4 RDIMM category is optimized for a wide range of server workloads, including virtualization, cloud computing, database management, and enterprise application hosting. ECC protection and registered buffering support stable operation under diverse workload patterns, from steady transactional loads to burst-intensive analytics processing.

Virtualization

Virtualized environments place unique demands on memory subsystems, as multiple virtual machines compete for resources. The predictability and stability of ECC RDIMM memory help ensure fair resource allocation and minimize performance anomalies. This makes the category particularly well-suited for private and hybrid cloud deployments.

Data Center

As data centers strive to improve sustainability, energy-efficient components become increasingly important. DDR4 RDIMM memory operating at lower voltage contributes to reduced power consumption across large deployments. When multiplied across thousands of servers, these efficiency gains can be substantial.