M386AAG40MMB-CVFCQ Samsung 2933MBPS 128GB DDR4 ECC Registered LRDIMM Ram

Highlights of Samsung M386AAG40MMB-CVFCQ 128GB DDR4 Ram

The Samsung M386AAG40MMB-CVFCQ is a high-capacity load-reduced memory module designed for enterprise servers and data center applications. With 128GB capacity and DDR4-2933 speed, this LRDIMM provides reliable performance, high data integrity, and efficient power consumption for memory-intensive server workloads.

General Information

• Manufacturer: Samsung
• Part Number: M386AAG40MMB-CVFCQ
• Product Type: Server Memory Module
• Memory Interface: DDR4 SDRAM

Technical Specifications

• Total Memory Size: 128GB
• Module Quantity: 1 x 128GB
• Rank Structure: Quad Rank 4Rx4
• Memory Speed: 2933MBPS
• Standard: DDR4-2933 / PC4-23400
• CAS Latency: CL21
• Error Correction: ECC (Error-Correcting Code)
• Signal Processing: Registered (Buffered)
• Operating Voltage: 1.2V
• Memory Form Factor: LRDIMM
• Pin Configuration: 288-Pin

Shipping & Packaging Information

• Shipping Height: 1.00 Inch
• Shipping Depth: 6.75 Inch
• Shipping Weight: Approximately 0.20 lb

Compatibility

Dell PowerEdge Server Compatibility

• Dell PowerEdge R740
• Dell PowerEdge R740xd
• Dell PowerEdge R750
• Dell PowerEdge R650
• Dell PowerEdge R760 (DDR4-supported configurations)

Dell Equivalent Memory Part Numbers

• SNPJ7M6VC/128G
• SNPJ8C6MC/128G

HPE ProLiant Server Compatibility

• HPE ProLiant DL380 Gen10
• HPE ProLiant DL380 Gen10 Plus
• HPE ProLiant DL360 Gen10
• HPE ProLiant ML350 Gen10

HPE SmartMemory Reference Codes

• P07648-B21
• P07648-001

Lenovo ThinkSystem Compatibility

• Lenovo ThinkSystem SR650
• Lenovo ThinkSystem SR630
• Lenovo ThinkSystem SR670

Lenovo FRU / Option Numbers

• 4X77A77497
• 4X77A08635

Supermicro Server Compatibility

• Supermicro X12DPG-QT6
• Supermicro X12DPi-N6
• Supermicro X12SPM-TF

Supermicro Memory Reference Code

• MEM-DR412L-SL03-ER32

Overview of Samsung M386AAG40MMB-CVFCQ DDR4 2933MBPS

The Samsung M386AAG40MMB-CVFCQ 128GB DDR4 memory module belongs to the enterprise-class Load Reduced DIMM (LRDIMM) category, specifically engineered for high-capacity server environments that require maximum memory scalability, signal integrity, and operational reliability. This category is essential for data centers, cloud computing platforms, virtualization servers, and mission-critical enterprise workloads. LRDIMM technology allows servers to support larger memory footprints than standard RDIMMs by reducing the electrical load on the memory controller, enabling the use of higher-rank and higher-capacity modules while maintaining system stability.

High-Capacity 128GB Memory for Server Scalability

The 128GB capacity of this LRDIMM module positions it in the ultra-high-density memory category, designed for servers that require extensive memory allocation for large-scale applications. Modern enterprise workloads, including virtualization, in-memory databases, cloud computing, and high-performance analytics, demand substantial memory to achieve optimal performance and efficiency. By providing 128GB per module, this category reduces the number of memory slots required to reach multi-terabyte configurations.

Quad-Rank 4Rx4 Organization Advantages

This LRDIMM module features a 4Rx4 quad-rank configuration, meaning it contains four independent memory ranks organized with x4 DRAM chips. Quad-rank organization provides improved memory interleaving, higher effective throughput, and greater memory density per module compared to dual-rank or single-rank designs. It also optimizes parallel data access patterns, which is crucial for enterprise applications that demand high performance and consistent memory availability. Quad-rank memory architecture is particularly beneficial in multi-socket server environments where memory bandwidth and rank interleaving can significantly influence overall system performance.

DDR4-2933 Performance and PC4-23400 Bandwidth

Operating at 2933 megatransfers per second, this DDR4 memory module belongs to the DDR4-2933 performance tier, also referred to as PC4-23400. While slightly below the DDR4-3200 standard, the 2933 MT/s speed offers an excellent balance of memory bandwidth and latency for enterprise server workloads. This category provides the necessary throughput for demanding applications while ensuring stability under continuous, high-volume operation. PC4-23400 bandwidth supports virtualization, database transactions, real-time analytics, AI inference, and other memory-intensive operations.

Enterprise Server CPUs

LRDIMM modules in this category are designed to be compatible with enterprise-class CPUs from Intel Xeon Scalable and AMD EPYC families, which support load reduced memory configurations. The Samsung M386AAG40MMB-CVFCQ adheres to JEDEC standards, ensuring reliable interoperability with certified server motherboards.Consistent memory performance across all populated slots is essential for multi-socket architectures, where balanced access across NUMA nodes significantly impacts workload efficiency. This memory category ensures stable 2933 MT/s operation even in fully populated configurations.

ECC Registered Memory

This category includes ECC Registered functionality, a critical feature for enterprise server memory. ECC memory can detect and correct single-bit errors and identify multi-bit errors before they compromise system stability or data integrity. This functionality is essential for servers that manage critical workloads, including financial processing, healthcare databases, cloud services, and large-scale virtualization. The Samsung M386AAG40MMB-CVFCQ integrates both ECC and registered features, providing an additional layer of reliability.

Load Reduced Technology and Signal Integrity

Load Reduced DIMM technology significantly enhances signal integrity by isolating the electrical load of multiple DRAM chips from the memory controller. This allows higher-rank modules to function reliably even in dense server configurations. The memory category represented by the Samsung M386AAG40MMB-CVFCQ is particularly suitable for servers requiring high capacity and stability without compromising signal quality. By minimizing electrical stress, LRDIMM modules enable enterprise systems to achieve higher memory capacities per channel while maintaining consistent operation under full load, which is essential for virtualization and database performance.

1.2V Operating Voltage

The Samsung M386AAG40MMB-CVFCQ operates at 1.2 volts, which aligns with standard DDR4 voltage specifications for LRDIMM memory. This operating voltage provides a balance between performance and energy efficiency, ensuring consistent operation while minimizing heat generation. In high-density server environments, energy efficiency is critical for reducing operational costs and maintaining thermal stability. This category of memory allows enterprises to scale memory capacity without significantly increasing power consumption, making it ideal for modern data centers and high-density server racks.

Dense Deployments

High-capacity quad-rank LRDIMM modules naturally generate more heat due to the additional DRAM chips and buffering components. This memory category is designed to operate reliably under high thermal loads. Efficient thermal management ensures long-term stability and prevents performance degradation in fully populated server configurations. The Samsung M386AAG40MMB-CVFCQ is suitable for deployment in blade servers, rack-mounted servers, and high-density configurations, where consistent cooling is necessary to maintain optimal performance.

288-Pin LRDIMM Form Factor

The 288-pin form factor is standard for DDR4 server memory, ensuring broad compatibility with enterprise-class servers that support LRDIMM technology. Adherence to JEDEC mechanical and electrical specifications ensures reliable installation and operation across certified platforms. This memory category allows IT administrators to deploy consistent memory configurations across multiple servers without compatibility issues. The Samsung M386AAG40MMB-CVFCQ features a secure and stable design, minimizing the risk of electrical connectivity issues and enabling long-term reliability in enterprise deployments.

Server-Only Memory Classification

This LRDIMM memory category is exclusively designed for servers and workstations. It is not compatible with consumer desktop systems or standard unbuffered memory slots. By focusing on server applications, the category prioritizes reliability, stability, and long-term operation in mission-critical environments.

Latency and CL21 Timing Characteristics

This DDR4-2933 LRDIMM module has a CAS latency of CL21, providing a balance of speed and stability for enterprise workloads. While latency is slightly higher than lower CAS-rated modules, the memory category prioritizes predictable operation and throughput under continuous load rather than achieving peak transient speeds. The Samsung M386AAG40MMB-CVFCQ maintains consistent timing across all ranks, supporting applications that require deterministic memory performance, such as virtualization clusters and in-memory databases.

Workload-Oriented Performance

Enterprise workloads often involve sustained, high-volume memory access. This category of LRDIMM memory is optimized to handle such demands efficiently, ensuring stable latency and predictable performance across all operational conditions. This capability is essential for IT teams managing data center workloads where consistency and reliability are critical.

Cloud Infrastructure Enablement

High-capacity LRDIMM memory is essential for virtualization and cloud environments, where memory density directly impacts server consolidation ratios. The Samsung M386AAG40MMB-CVFCQ enables servers to host a large number of virtual machines or containers without memory contention, supporting dynamic workload allocation and optimal resource utilization. This memory category ensures that enterprise cloud platforms, private clouds, and hybrid infrastructure deployments can scale efficiently while maintaining reliable service levels for end users.

High Virtual Machine Density

Servers equipped with quad-rank, 128GB LRDIMM modules can host a higher density of virtual machines per host, reducing the need for additional hardware and lowering operational costs. Memory efficiency and scalability are critical factors for IT administrators managing virtualized data centers and cloud services.

Database, Analytics, and In-Memory Processing

Memory-intensive applications such as relational databases, big data analytics, and in-memory computing frameworks benefit from the high capacity and reliability of this memory category. By enabling large datasets to reside entirely in memory, LRDIMM modules reduce disk I/O bottlenecks, improve query response times, and enhance overall application performance. The Samsung M386AAG40MMB-CVFCQ supports enterprise workloads that require predictable memory access, including high-speed transaction processing, real-time analytics, and AI inference operations.

Samsung DRAM Manufacturing Excellence

Samsung is a global leader in semiconductor manufacturing, and the M386AAG40MMB-CVFCQ reflects the company’s commitment to high-quality enterprise memory. Each module is produced using advanced DRAM process technology and undergoes rigorous testing to ensure reliability, performance consistency, and compliance with enterprise standards. This memory category benefits from Samsung’s expertise in engineering and manufacturing, delivering components that meet the stringent requirements of enterprise-grade server deployments.

Long-Term Availability

Enterprise memory categories emphasize long-term availability and consistent specifications to support standardized server configurations. The Samsung M386AAG40MMB-CVFCQ is designed for extended lifecycle support, enabling IT administrators to maintain uniform memory configurations across multiple server generations without compatibility issues. Lifecycle stability reduces procurement challenges, ensures predictable infrastructure planning, and simplifies maintenance in large-scale data centers.

Reliability, Availability, and Continuous Operation

Enterprise LRDIMM memory is engineered for continuous, 24/7 operation in critical server environments. Features such as ECC protection, quad-rank organization, and load reduced buffering contribute to enhanced reliability and reduced risk of memory-related downtime. The Samsung M386AAG40MMB-CVFCQ provides consistent performance under high load and thermal stress, making it ideal for mission-critical applications.

Mission-Critical Deployment Readiness

Industries including finance, healthcare, telecommunications, research, and government require server memory that operates reliably under all conditions. This LRDIMM memory category meets these demands by combining high capacity, stable performance, and robust error correction features. The Samsung M386AAG40MMB-CVFCQ represents a trusted solution for enterprise servers that prioritize scalability, integrity, and long-term operational confidence.