M393A4K40BB3-CVF Samsung 32GB 2933MHZ PC4-23400 Cl21 DDR4 SDRAM RDIMM Memory

Highlights of Samsung M393A4K40BB3-CVF 32GB DDR4 Memory

The Samsung M393A4K40BB3-CVF is a premium 32GB DDR4 RDIMM memory module designed for high-performance enterprise servers and professional computing systems. With ECC error correction, registered signal processing, and optimized CAS latency, this memory module ensures stability, reliability, and superior performance for mission-critical workloads.

General Information

• Manufacturer: Samsung
• Part Number: M393A4K40BB3-CVF
• Product Type: Server Memory Module
• Memory Interface: DDR4 2933MHz PC4-23400 

Technical Specifications

• Total Capacity: 32GB
• Number of Modules: 1 x 32GB
• Rank Layout: 2Rx4 (Dual Rank)
• Memory Speed: 2933 MHz
• Bus Rating: DDR4-23400 / PC4-2933 MHz
• CAS Latency: CL21
• Memory Type: DDR4 SDRAM
• Error Checking: ECC (Error-Correcting Code)
• Signal Processing: Registered

Physical Specifications

• Form Factor: 288-Pin RDIMM
• Shipping Height: 1.00 inch
• Shipping Depth: 6.75 inches
• Shipping Weight: 0.20 lb

Compatibility

Supported Server Platforms

• Dell PowerEdge servers with DDR4 ECC RDIMM support
• HPE ProLiant Gen9, Gen10, and Gen11 servers
• Lenovo ThinkSystem and System x servers
• Supermicro X10, X11, and X12 motherboard platforms
• IBM and other enterprise-class server systems

Processor Compatibility

• Intel Xeon E5-2600 v3 and v4 processor families
• Intel Xeon Scalable processors (Bronze, Silver, Gold, Platinum)
• AMD EPYC 7001, 7002, and 7003 series processors

Overview of Samsung M393A4K40BB3-CVF 32GB PC4-23400 ECC

The Samsung M393A4K40BB3-CVF 32GB DDR4 2933MHz PC4-23400 CL21 SDRAM RDIMM 288-Pin Memory Module belongs to the high-performance DDR4 RDIMM memory category designed specifically for enterprise servers, data centers, and mission-critical computing environments. This category focuses on stability, data integrity, and long-term reliability, which are essential for workloads that demand continuous uptime and predictable performance. Unlike consumer-grade memory, enterprise DDR4 RDIMM modules are engineered to operate under high-density configurations and sustain continuous heavy workloads while minimizing the risk of data corruption or system failure.

Registered DIMM (RDIMM) Architecture

Registered DIMMs are a critical feature of this memory category. They incorporate a register between the memory controller and the DRAM chips, buffering electrical signals and reducing the load on the memory controller. This design allows servers to accommodate multiple high-capacity modules per channel without compromising signal integrity or stability. RDIMM architecture is particularly beneficial in multi-socket servers where signal paths are longer and more prone to noise and timing skew.

Signal Integrity and Reliability

The register in RDIMM modules ensures accurate signal transmission to each DRAM chip, maintaining consistent timing and reducing the potential for data errors. This design aspect is essential in enterprise environments where servers often operate with all memory slots populated. By providing reliable signal management, RDIMM modules enhance system stability and prevent performance degradation, even under heavy multi-threaded workloads.

Load Balancing Across Channels

RDIMM modules distribute electrical load across multiple channels, minimizing signal degradation and enabling high-density configurations without affecting latency. This load balancing is crucial for mission-critical applications, virtualization clusters, and cloud platforms where consistent memory performance is required to support concurrent operations across numerous workloads.

DDR4 SDRAM Technology and PC4-23400 Performance

DDR4 SDRAM forms the technological foundation of this category. The Samsung M393A4K40BB3-CVF module operates at 2933MHz, providing PC4-23400 bandwidth and delivering sustained memory throughput for enterprise workloads. DDR4 technology offers improvements over previous memory generations, including higher density, lower operating voltage (1.2V nominal), and enhanced thermal efficiency, which are essential for energy-conscious data centers and densely populated server racks. Modules in this category prioritize stable, continuous performance over peak burst speeds.

CAS Latency CL21 and Timing Stability

The CL21 CAS latency specification of the Samsung M393A4K40BB3-CVF module balances speed and reliability. In enterprise servers, predictable timing and latency consistency are more critical than the lowest possible CAS values, as they directly impact the performance of database transactions, virtualization operations, and multi-threaded applications. Maintaining stable latency under full load ensures enterprise systems can deliver consistent service levels and avoid bottlenecks.

Multi-Core CPU Bandwidth

Modern server processors typically feature multiple cores with multiple memory channels. Modules in this category ensure balanced bandwidth allocation across all channels, minimizing contention and optimizing data access. This architecture supports multi-threaded applications, virtualization platforms, and memory-intensive enterprise workloads, improving overall system performance and throughput.

ECC and Data Integrity

While the Samsung M393A4K40BB3-CVF module is not explicitly specified as ECC in all configurations, the broader RDIMM memory category often includes ECC functionality to detect and correct single-bit memory errors. ECC memory is critical in enterprise environments to prevent data corruption, application crashes, and unexpected downtime. By ensuring memory reliability, this category supports mission-critical workloads that require continuous operation and data integrity.

System Reliability and Uptime

Memory modules in this category contribute to overall system reliability by minimizing memory-related failures. Enterprise servers using RDIMM modules benefit from improved fault tolerance, reduced maintenance windows, and uninterrupted operation of critical applications. Many enterprise servers log memory errors to support predictive maintenance strategies. Modules in this category integrate seamlessly with these monitoring systems, allowing administrators to replace or service memory proactively, further enhancing operational continuity and reducing the risk of unexpected downtime.

Physical Design and 288-Pin RDIMM Form Factor

The Samsung M393A4K40BB3-CVF module adheres to the 288-pin RDIMM standard, ensuring compatibility with a wide range of enterprise server motherboards. This form factor provides secure mechanical installation, reliable electrical connections, and stability in high-density server configurations. Physical durability is a critical aspect of this category, as servers are often subject to thermal cycling, airflow variations, and mechanical vibration.

Material Quality and Manufacturing Standards

Modules in this category are constructed using high-quality PCBs and robust manufacturing processes, ensuring electrical consistency and long-term mechanical stability. Samsung's rigorous quality control measures, including module-level testing and validation, minimize the risk of module failure and guarantee reliable operation over extended periods. Consistency in manufacturing ensures uniform performance across multiple modules in large-scale deployments.

Enterprise Server Platforms

This memory category is compatible with a wide array of enterprise server platforms that support DDR4 RDIMM modules. It can be deployed in rack-mounted, blade, and tower servers, supporting high-density, multi-socket configurations. Samsung’s OEM qualification ensures consistent performance and compatibility across validated server systems, providing administrators with confidence in deployment and expansion strategies.

Automatic BIOS and Firmware Integration

Enterprise servers detect and configure RDIMM modules automatically through standardized SPD profiles. Modules in this category ensure proper voltage, frequency, and timing configurations, simplifying installation and reducing the potential for configuration errors. Automatic recognition and optimization support immediate operational readiness and reliability in enterprise environments.

Long-Term Platform

JEDEC compliance ensures that modules in this category maintain predictable performance through firmware updates and across multiple server platform generations. The Samsung M393A4K40BB3-CVF module supports long-term deployment without sacrificing stability, providing enterprise systems with consistent operational reliability throughout the server lifecycle.

Scalability and Memory Expansion

Scalability is a fundamental feature of this memory category. With 32GB per module, administrators can incrementally populate memory channels based on current workload requirements, while planning for future expansion. Multi-socket servers can achieve hundreds of gigabytes of total memory capacity, enabling large-scale virtualization, database management, and analytics workloads without compromising performance or stability.

Cloud Infrastructure Applications

Enterprise memory modules in this category are optimized for virtualized environments and cloud computing. Higher capacity and reliable signal management allow administrators to run a greater number of virtual machines per host, improving resource utilization and efficiency. ECC and RDIMM architecture ensure memory integrity and operational stability in multi-tenant or cloud-hosted infrastructures.

In-Memory Databases Applications

High-performance applications such as in-memory databases, caching engines, and real-time analytics benefit from the high bandwidth, capacity, and stability of this category. Predictable access times and consistent throughput enable these applications to operate efficiently, ensuring rapid response and data integrity for critical enterprise processes.

Manufacturing Quality

Samsung enforces rigorous quality control standards for this category, including burn-in testing, chip screening, and module-level validation. These processes ensure that each memory module meets the enterprise reliability requirements, offering consistent performance across large-scale deployments. Uniformity across production batches allows for homogeneous configurations in multi-server environments, simplifying maintenance, upgrades, and replacements. Predictable behavior across modules ensures system stability and reduces operational risks.

JEDEC Compliance and Industry Standards

Compliance with JEDEC standards guarantees interoperability, predictable performance, and long-term reliability. Enterprise servers rely on these standards to ensure consistent behavior across multiple hardware platforms, reducing compatibility risks and supporting scalable infrastructure.

Availability and Replacement Assurance

Memory modules in this category offer extended availability for replacement or expansion, supporting enterprise lifecycle management. Consistent availability ensures that administrators can maintain or expand memory capacity without compromising system performance, protecting infrastructure investments and operational continuity.

Enterprise Applications and Use Cases

The Samsung M393A4K40BB3-CVF memory category supports a wide range of enterprise workloads, including ERP platforms, CRM systems, virtualization hosts, and large-scale database applications. High-capacity RDIMM modules provide stable performance under concurrent access, enabling consistent application throughput and reliability.

Financial and High-Availability Systems

Financial and transactional systems require uninterrupted uptime and memory error protection. Modules in this category prevent data corruption, maintain transactional integrity, and ensure stable operation of mission-critical applications, reducing the risk of downtime in high-stakes environments.

Scientific Computing and Data Analytics

Scientific simulations, engineering calculations, and analytical workloads rely on high-capacity, stable memory. Modules in this category provide the reliability and performance required for long-running computations, ensuring accurate results and uninterrupted operation in high-performance computing applications.

Positioning in the DDR4 Enterprise Memory Market

The Samsung M393A4K40BB3-CVF module represents a mature, reliable, and high-performance solution within the DDR4 enterprise memory ecosystem. It balances bandwidth, density, and energy efficiency, making it suitable for diverse enterprise applications and deployment scenarios. While DDR5 memory is emerging, DDR4 modules in this category remain relevant due to extensive platform support, proven reliability, and cost-effectiveness. Enterprises can expand capacity and improve performance without replacing existing infrastructure, providing a practical and strategic memory solution.

Strategic IT Planning and Reliability

This category enables organizations to extend server lifespan and improve operational efficiency through incremental memory upgrades. The combination of 32GB capacity, RDIMM architecture, and energy-efficient DDR4 operation makes it an optimal choice for enterprise-scale deployments. The Samsung M393A4K40BB3-CVF memory category supports strategic IT planning by offering predictable performance, broad platform compatibility, and sustained operational reliability. Its design emphasizes stability, scalability, and long-term value, positioning it as a key component of modern enterprise server memory infrastructure.