M391A2G43BB2-CWE Samsung 16GB DDR4-3200MHz Memory Module

Highlights of Samsung 16GB 3200MHz RAM

The Samsung M391A2G43BB2-CWE 16GB PC4-25600 DDR4-3200MHz Memory Module is designed for high-speed performance, reliability, and efficiency in modern computing environments.

Main Information

• Brand Name: Samsung
• Model Number: M391A2G43BB2-CWE
• Product Type: 16GB DDR4 SDRAM Memory Module

Technical Highlights

• Storage Capacity: 16GB
• Memory Technology: DDR4 SDRAM
• Module Count: 1 x 16GB

Performance Specifications

• Bus Speed: 3200Mbps DDR4-3200 / PC4-25600
• Data Integrity: ECC (Error-Correcting Code)
• Signal Processing: Unbuffered
• CAS Latency: CL21
• Rank Configuration: 1Rx8

Physical Characteristics

Design and Build

• Form Factor: 288-pin UDIMM

Dimensions and Weight

Shipping Measurements

• Height: 1.00 inches
• Depth: 6.75 inches

Shipping Weight

• Weight: 0.20 lb

Samsung M391A2G43BB2-CWE 16GB PC4-25600 RAM Overview

The category of enterprise-grade DDR4 server memory modules represents a critical foundation for modern data center performance, scalability, and reliability. Within this category, high-capacity registered DIMMs are engineered to support mission-critical workloads, virtualization platforms, cloud infrastructures, and database-driven applications that demand consistent throughput and low latency. These memory solutions are purpose-built to operate continuously under heavy workloads, offering superior signal integrity, thermal stability, and compatibility across a wide range of professional server architectures.

DDR4 server memory at 3200MHz data rates has become a mainstream standard for enterprise systems, delivering an optimal balance between bandwidth, power efficiency, and platform support. As organizations expand their compute environments to handle analytics, artificial intelligence preprocessing, and large-scale transactional operations, memory modules such as the Samsung M391A2G43BB2-CWE 16GB PC4-25600 DDR4-3200MHz Memory Module play an essential role in sustaining performance consistency across multi-socket server configurations.

Samsung DDR4 Registered DIMM Product Classification

Samsung’s registered DDR4 memory modules fall within a specialized subcategory designed for server and workstation platforms that require enhanced electrical buffering and stability. Registered DIMMs, commonly referred to as RDIMMs, include an onboard register that reduces the electrical load on the memory controller. This design enables higher memory capacities and improved signal reliability, particularly in systems populated with multiple memory modules per channel.

The Samsung M391A2G43BB2-CWE belongs to this RDIMM classification and aligns with industry standards for PC4-25600 memory, delivering up to 25.6GB/s of bandwidth per module. This classification ensures compatibility with enterprise-class motherboards from leading server manufacturers, supporting predictable deployment in rack servers, tower servers, and blade systems.

DDR4-3200 Performance Tier Explanation

The DDR4-3200 performance tier represents one of the most widely adopted speeds in current-generation servers. Operating at an effective data rate of 3200MHz, this tier provides significant improvements in memory bandwidth compared to earlier DDR4 generations while maintaining efficient power consumption. For workloads that rely heavily on memory throughput, such as in-memory databases, virtualization hosts, and high-performance computing clusters, DDR4-3200 memory ensures balanced system responsiveness.

Samsung’s implementation of DDR4-3200 technology focuses on consistent timing behavior and strict adherence to JEDEC standards. This ensures predictable performance under sustained loads, making it suitable for environments where uptime and data integrity are paramount.

PC4-25600 Bandwidth Characteristics

The PC4-25600 designation indicates a theoretical maximum bandwidth of 25.6 gigabytes per second per memory module. This bandwidth level is particularly advantageous in multi-channel memory architectures, where aggregate throughput scales linearly with the number of populated channels. In enterprise servers featuring six or eight memory channels per processor, PC4-25600 modules contribute to extremely high overall memory bandwidth.

This bandwidth capability supports modern CPUs with high core counts, ensuring that processing units are not bottlenecked by insufficient memory access speeds. As a result, applications that involve parallel processing, real-time analytics, and large data set manipulation benefit directly from this memory classification.

16GB Capacity Segment in Server Memory Solutions

The 16GB capacity segment occupies an important position within the broader server memory market. It offers a balanced option for organizations seeking to optimize cost, scalability, and performance. While higher-capacity modules are available, 16GB RDIMMs provide flexibility for incremental upgrades and allow system administrators to tailor memory configurations according to workload requirements.

In virtualized environments, 16GB modules enable efficient memory allocation across multiple virtual machines, supporting density without excessive overprovisioning. This capacity segment is also commonly used in application servers, web servers, and infrastructure services where predictable memory usage patterns are essential.

Scalability Advantages of 16GB RDIMMs

Using 16GB RDIMMs such as the Samsung M391A2G43BB2-CWE allows for scalable memory configurations that can grow alongside business needs. By populating multiple DIMM slots with mid-capacity modules, organizations can achieve high total memory capacities while maintaining balanced channel utilization.

This approach supports gradual expansion strategies, reducing upfront investment and enabling cost-effective upgrades as workloads evolve. It also simplifies inventory management by standardizing on a widely compatible memory size.

Memory Density and Channel Optimization

Memory density plays a critical role in server performance optimization. With 16GB modules, system architects can populate all available memory channels to maximize bandwidth while maintaining sufficient capacity for demanding applications. This configuration ensures that CPUs can fully leverage their memory controllers, resulting in improved overall system efficiency.

Channel optimization is particularly important in dual-socket and multi-socket servers, where balanced memory distribution directly impacts NUMA performance and application latency.

Registered DIMM Architecture and Reliability

Registered DIMMs incorporate a register between the memory controller and the DRAM chips, which buffers address and command signals. This architecture reduces electrical load and improves signal integrity, especially in systems with high DIMM counts. The Samsung M391A2G43BB2-CWE exemplifies this design philosophy, providing stable operation in enterprise environments.

Reliability is a defining characteristic of RDIMM memory. These modules are engineered to operate continuously under elevated temperatures and sustained workloads, making them suitable for data centers that require uninterrupted service.

Error Correction and Data Integrity

Server-grade RDIMMs typically support error correction mechanisms that enhance data integrity. While the primary function of ECC is managed at the system level, the memory module’s design and component quality significantly influence error rates and long-term reliability.

Samsung’s manufacturing processes emphasize strict quality control and validation testing, ensuring that each memory module meets enterprise reliability standards. This focus on data integrity reduces the risk of memory-related system crashes and data corruption.

Signal Stability in High-Density Configurations

In high-density memory configurations, signal stability becomes increasingly important. Registered DIMMs mitigate signal degradation by buffering commands, enabling systems to maintain stable operation even when all memory slots are populated. This stability is crucial for large-scale deployments where consistency across hundreds or thousands of servers is required.

Compatibility with Modern Server Platforms

The Samsung M391A2G43BB2-CWE is designed to integrate seamlessly with a wide range of modern server platforms. Compatibility with leading processor architectures ensures that this memory module can be deployed across diverse environments, including enterprise servers, cloud infrastructure, and professional workstations.

Adherence to JEDEC standards guarantees predictable behavior across supported platforms, simplifying deployment and reducing compatibility-related issues during system upgrades or expansions.

Integration with Multi-Core Processors

Modern server processors feature high core counts and advanced memory controllers that benefit from high-speed DDR4 memory. The DDR4-3200 specification aligns well with these processors, ensuring that each core has sufficient memory bandwidth to perform efficiently.

This integration supports demanding workloads such as virtualization, container orchestration, and large-scale parallel processing, where memory access patterns are complex and intensive.

Use in Virtualization and Cloud Environments

Virtualization platforms rely heavily on memory performance and reliability. The Samsung M391A2G43BB2-CWE supports stable operation in hypervisor-based environments, enabling consistent performance across virtual machines. Its capacity and speed make it suitable for hosting multiple workloads without compromising responsiveness.

In cloud environments, standardized memory modules simplify provisioning and maintenance, contributing to predictable service levels and reduced operational overhead.

Thermal Efficiency and Power Characteristics

DDR4 memory introduces improvements in power efficiency compared to previous generations, operating at lower voltages while delivering higher performance. The Samsung M391A2G43BB2-CWE benefits from these advancements, reducing overall system power consumption and heat generation.

Thermal efficiency is particularly important in densely populated server racks, where effective heat management directly impacts system reliability and operating costs.

Power Optimization in Data Centers

Lower power consumption per memory module contributes to reduced energy usage across large-scale deployments. By utilizing DDR4-3200 RDIMMs, data centers can achieve higher performance without significantly increasing power budgets.

This optimization supports sustainability initiatives and helps organizations manage operational expenses over the lifecycle of their infrastructure.

Stable Operation Under Continuous Load

Enterprise memory modules are designed for continuous operation. The Samsung M391A2G43BB2-CWE is validated for long-term stability, ensuring consistent performance under constant load conditions. This reliability is essential for applications that cannot tolerate downtime or performance degradation.

Use Cases Across Enterprise Applications

The Samsung M391A2G43BB2-CWE 16GB DDR4-3200 memory module is suitable for a wide range of enterprise applications. Its performance and reliability make it a versatile choice for infrastructure services, application hosting, and data processing workloads.

From database servers to virtualization clusters, this memory category supports diverse operational requirements without compromising stability.

Database and Analytics Workloads

Database systems and analytics platforms benefit from high memory bandwidth and low latency. DDR4-3200 RDIMMs enable faster query execution and improved throughput, particularly in in-memory database configurations.

Enterprise Applications and Middleware

Enterprise applications and middleware platforms rely on predictable memory performance to ensure consistent user experiences. The Samsung M391A2G43BB2-CWE supports these requirements by delivering stable operation and sufficient capacity for concurrent processes.