M386ABG40M51-CAE Samsung 256GB 3200Mhz PC4-25600 ECC Reg DDR4 Ram

Main Details of Samsung 256GB 3200Mhz RAM

The Samsung M386ABG40M51-CAE is a high-capacity 256GB DDR4 SDRAM memory module designed for enterprise-grade performance. Operating at 3200MHz (PC4-25600), this ECC Registered RAM ensures reliability and speed for demanding workloads.

General Information

• Manufacturer: Samsung
• Model Number: M386ABG40M51-CAE
• Product Type: 256GB DDR4 SDRAM Memory Module

Technical Highlights

• Storage Capacity: 256GB
• Memory Technology: DDR4 SDRAM
• Module Count: 1 x 256GB
• Bus Speed: 3200Mbps DDR4-3200 / PC4-25600

Reliability Features

• Data Integrity: ECC (Error-Correcting Code)
• Signal Processing: Registered
• CAS Latency: CL22
• Rank Configuration: Octal Rank x4

Physical Characteristics

Form Factor

• Design Type: 288-Pin LRDIMM

Dimensions & Weight

Shipping Dimensions

• Height: 1.00 inches
• Depth: 6.75 inches

Shipping Weight

• Weight: 0.20 lb

Enterprise-Class DDR4 Registered Memory Category Overview

The Samsung M386ABG40M51-CAE 256GB 3200MHz PC4-25600 ECC Registered DDR4 288-Pin RAM belongs to a high-capacity enterprise memory category engineered for data centers, mission-critical servers, virtualization platforms, and advanced computing workloads. This category focuses on reliability, sustained performance, and architectural stability rather than consumer-oriented features. DDR4 Registered DIMM modules are specifically designed to support large memory footprints while maintaining signal integrity, making them essential for modern server infrastructures that demand continuous uptime and predictable performance.

Within this category, 256GB RDIMM modules represent the upper tier of memory density, enabling organizations to consolidate workloads, reduce physical server counts, and increase efficiency per rack unit. The Samsung M386ABG40M51-CAE exemplifies this class by combining advanced DDR4 technology with enterprise-grade error correction and registered buffering, ensuring stable operation even under extreme memory loads.

DDR4 RDIMM Architecture and Server Compatibility

Registered DIMM Design Principles

Registered Dual In-Line Memory Modules incorporate a register between the memory controller and the DRAM chips. This register reduces the electrical load on the memory controller by buffering command and address signals. In enterprise environments where multiple high-capacity modules are installed across many channels, this buffering is critical to maintaining timing accuracy and system stability.

The Samsung M386ABG40M51-CAE utilizes a 288-pin RDIMM form factor compliant with JEDEC DDR4 specifications. This design allows it to integrate seamlessly with server platforms that support registered memory, including a wide range of enterprise-grade systems from major OEMs. The registered architecture enables consistent performance across large-scale memory configurations that would otherwise be unstable with unbuffered modules.

Platform-Level Integration

This category of memory is intended for servers and workstations that feature multi-channel memory controllers and support ECC RDIMM modules. Systems built on Intel Xeon Scalable processors or AMD EPYC platforms are common deployment targets. These platforms rely on registered memory to achieve high DIMM counts per channel without sacrificing signal integrity or clock speed.

The 3200MHz data rate supported by this module ensures compatibility with newer server architectures that leverage higher memory bandwidth to accelerate data-intensive workloads. By operating at PC4-25600 speeds, the module aligns with contemporary performance expectations while maintaining backward compatibility with systems that downclock memory based on platform constraints.

High-Capacity 256GB Memory Density Benefits

Optimizing Virtualization and Cloud Environments

High-density memory modules such as 256GB RDIMMs are foundational to modern virtualization and private cloud infrastructures. They allow administrators to allocate larger memory pools to virtual machines, reducing contention and improving application responsiveness. The Samsung M386ABG40M51-CAE supports dense memory configurations that enable higher VM consolidation ratios per physical server.

This increased density translates directly into operational efficiency. Fewer servers are required to support the same workload capacity, resulting in lower power consumption, reduced cooling requirements, and simplified management. For cloud service providers and enterprise IT teams, this category of memory helps align infrastructure growth with cost-control objectives.

In-Memory Databases and Analytics

In-memory computing platforms benefit significantly from ultra-high-capacity memory modules. Databases that store entire datasets in RAM experience dramatically reduced latency compared to disk-based systems. The 256GB capacity of this module allows larger datasets to reside in memory, enabling real-time analytics and faster transaction processing.

Applications such as enterprise resource planning, financial modeling, and scientific simulations depend on large contiguous memory spaces. DDR4 RDIMM modules in this category provide the capacity and reliability required to support these demanding workloads without performance degradation over extended periods.

Error Correction Code and Data Integrity

ECC Technology in Enterprise Memory

Error Correction Code memory is a defining characteristic of enterprise-grade RAM categories. ECC technology detects and corrects single-bit memory errors and identifies multi-bit errors before they cause system instability or data corruption. In environments where uptime and data accuracy are critical, ECC memory is not optional but essential.

The Samsung M386ABG40M51-CAE integrates advanced ECC functionality at the hardware level, working in conjunction with supported server chipsets to maintain data integrity. This capability is especially important in systems that operate continuously and process large volumes of transactional or analytical data.

Reliability for Mission-Critical Applications

Memory errors, while rare, can have severe consequences in enterprise systems. ECC Registered DDR4 modules reduce the risk of unexpected crashes, corrupted files, or incorrect computational results. This reliability makes the category suitable for healthcare systems, financial institutions, telecommunications infrastructure, and government data centers.

By combining ECC with registered buffering, this memory category delivers a layered approach to stability. The result is predictable performance under heavy loads and reduced risk of downtime caused by memory-related faults.

Key Characteristics and Bandwidth Efficiency

DDR4-3200 Data Rate Advantages

Operating at 3200MHz, this memory module delivers a theoretical bandwidth of 25.6GB/s per channel. This level of throughput supports modern multi-core processors that require fast access to memory to avoid bottlenecks. High bandwidth is particularly beneficial for parallel workloads, where multiple threads access memory simultaneously.

The PC4-25600 classification reflects compliance with JEDEC standards, ensuring interoperability and consistent performance across supported platforms. This standardization is crucial in enterprise environments where hardware components must work reliably together over long deployment cycles.

Latency and Throughput Balance

While raw frequency is important, enterprise memory categories also emphasize balanced latency characteristics. The Samsung M386ABG40M51-CAE is engineered to deliver stable timings that complement its high frequency, ensuring efficient data access patterns for both read-intensive and write-intensive applications.

This balance supports workloads ranging from transactional databases to large-scale simulations, making the module versatile across diverse enterprise use cases.

Thermal Management and Power Efficiency

Energy-Aware Memory Design

DDR4 technology introduced significant improvements in power efficiency compared to previous generations. Operating at lower voltages, DDR4 RDIMM modules reduce overall system power consumption without compromising performance. This is particularly important in dense server environments where energy costs represent a substantial portion of operational expenses.

The Samsung M386ABG40M51-CAE benefits from Samsung’s advanced semiconductor manufacturing processes, which optimize power usage while maintaining high reliability. This efficiency contributes to cooler operating temperatures and extended component lifespan.

Thermal Stability in Dense Configurations

High-capacity modules generate more heat due to increased chip density. Enterprise memory categories address this challenge through careful PCB design and thermal optimization. The 288-pin form factor supports efficient heat dissipation, ensuring stable operation even when multiple modules are installed in close proximity.

Thermal stability is essential for maintaining consistent performance over time, especially in data centers where systems run continuously under heavy workloads.

Compatibility and Qualification Processes

Enterprise memory modules are often qualified by server OEMs to ensure compatibility with specific platforms. This qualification process includes extensive testing under various workloads and environmental conditions. Memory in this category is designed to meet these stringent requirements, reducing the risk of integration issues.

By adhering to industry standards and OEM qualification criteria, the Samsung M386ABG40M51-CAE fits seamlessly into enterprise ecosystems that prioritize reliability and supportability.

Use Cases Across Industry Verticals

Data Center and Cloud Infrastructure

In large-scale data centers, memory density and reliability directly impact service quality and operational efficiency. High-capacity DDR4 RDIMM modules enable service providers to maximize resource utilization while maintaining consistent performance. This category supports scalable architectures that can grow alongside business demands.

Cloud platforms benefit from the ability to allocate memory dynamically across tenants, and 256GB modules provide the flexibility required to support diverse workload profiles.

Scalable Memory Expansion

Servers designed to support registered memory can be populated incrementally as needs evolve. Starting with fewer high-capacity modules and expanding over time provides flexibility in budgeting and deployment planning. The Samsung M386ABG40M51-CAE fits well into this scalable approach, supporting both initial deployments and later expansions.