M393A2G40EB1-CRC Samsung 16GB DDR4 2400MHz PC4-19200 ECC Dual Rank Memory

Samsung M393A2G40EB1-CRC 16GB DDR4 Memory

The Samsung M393A2G40EB1-CRC is a high‑efficiency 16GB DDR4 RDIMM engineered for enterprise servers and demanding data environments. Designed to deliver stable performance, improved bandwidth, and advanced error correction, this module ensures smooth multitasking and dependable operation in mission‑critical systems.

General Specifications

• Brand Name: Samsung
• Part Number: M393A2G40EB1-CRC
• Product Type: 16GB DDR4 SDRAM Registered Memory

Key Attributes

• Total Capacity: 16GB
• Module Configuration: 1 × 16GB RDIMM
• Memory Standard: DDR4 SDRAM
• Speed Rating: 2400Mbps (DDR4‑2400 / PC4‑19200)
• Error Correction: ECC for automatic data error detection and correction
• Signal Type: Registered (Buffered) for enhanced stability
• CAS Latency: CL17 for balanced speed and responsiveness
• Rank Structure: Dual Rank (4Rx4) for improved memory density and performance

Physical Characteristics

• Form Factor: 288-Pin

Compatibility

This Samsung RDIMM is suitable for servers and workstations that support DDR4 ECC Registered memory. It is ideal for virtualization, cloud computing, database management, and other high‑load applications.

Samsung 16GB DDR4 RDIMM Memory Overview

The Samsung M393A2G40EB1-CRC 16GB 2400MHz PC4-19200 CL17 ECC Registered Dual Rank x4 DDR4 SDRAM 288-Pin RDIMM memory module belongs to a specialized category of enterprise-grade server memory designed for sustained workloads, predictable latency behavior, and long-term operational stability. This category encompasses registered DIMM solutions built on DDR4 technology, optimized for multi-socket servers and professional workstations where memory integrity and scalability are central to system reliability. Unlike consumer unbuffered modules, this class integrates a register between the memory controller and DRAM components, reducing electrical load and enabling higher population densities across memory channels. DDR4 RDIMM memory modules in this category are deployed in environments where uptime, error mitigation, and compatibility with server chipsets are mandatory. They are integral to systems running virtualization platforms, database engines, enterprise resource planning software, and infrastructure services that demand deterministic behavior under sustained memory pressure.

DDR4 SDRAM

DDR4 SDRAM represents a generational advancement over DDR3, offering higher data transfer rates, improved power efficiency, and increased module density. In the context of registered DIMMs, DDR4 operates at reduced voltages while sustaining elevated bandwidth levels suitable for modern CPUs with multiple memory channels. The PC4-19200 designation corresponds to a theoretical bandwidth of 19.2 GB/s per module, a figure that aligns with server processors designed to aggregate throughput across multiple channels. This memory category is engineered to balance throughput with signal integrity. DDR4 RDIMM modules use point-to-point signaling enhancements and refined termination schemes to maintain stability at higher frequencies. For enterprise workloads, these characteristics translate into consistent memory access patterns that benefit transactional systems and analytics platforms where memory access latency can influence overall application responsiveness.

Voltage

Operating at a nominal voltage of 1.2V, DDR4 RDIMM modules reduce power consumption compared to earlier generations while delivering higher performance per watt. In data center environments where thousands of memory modules may be deployed, even marginal efficiency improvements can have a measurable impact on thermal output and operating costs. The Samsung M393A2G40EB1-CRC exemplifies this balance by maintaining stable operation under continuous load while minimizing unnecessary power draw.

ECC

Error Correcting Code functionality is a defining characteristic of this memory category. ECC RDIMM modules incorporate additional memory bits that enable detection and correction of single-bit errors and detection of multi-bit errors. This capability is critical in systems where silent data corruption could compromise calculations, transactions, or stored information. The Samsung M393A2G40EB1-CRC employs ECC at the hardware level, working transparently with supported processors and chipsets to preserve data accuracy. ECC memory is particularly valuable in long-running workloads such as scientific simulations, financial modeling, and server-side applications that may operate continuously for extended periods. By mitigating the effects of transient errors caused by electrical interference or cosmic radiation, this category of memory helps maintain system trustworthiness and reduces the risk of unpredictable failures.

Reliability

Server-class ECC RDIMM modules are validated under stricter quality assurance processes than consumer memory. They are designed to operate within defined thermal and electrical envelopes for years of service. The Samsung M393A2G40EB1-CRC fits within this framework, supporting enterprise expectations for reliability, predictable degradation characteristics, and compatibility with error logging mechanisms used by server management software.

Registered DIMM

The registered DIMM architecture introduces a clock driver and register that buffer address and control signals. This design reduces the electrical load seen by the memory controller, enabling systems to support a greater number of DIMMs per channel without compromising stability. In multi-socket server platforms, this capability is essential for achieving high total memory capacities. The Samsung M393A2G40EB1-CRC, as part of this category, supports configurations where memory channels are fully populated. This allows organizations to scale memory capacity incrementally while maintaining consistent performance characteristics. The registered design also contributes to cleaner signal timing, which is particularly important at DDR4 frequencies.

Scalability

RDIMM modules are commonly used in platforms with multiple memory channels per CPU. The buffering provided by the register allows for greater flexibility in channel population strategies, enabling balanced configurations that maximize bandwidth. This scalability makes the category suitable for virtualization hosts and database servers where memory capacity and throughput must grow in tandem with workload demands.

Dual Rank Architecture

Dual rank memory modules contain two independent sets of DRAM chips that can be accessed alternately by the memory controller. This configuration can improve effective memory throughput by allowing the controller to interleave accesses between ranks. In server workloads characterized by frequent memory transactions, dual rank designs can offer measurable benefits. The Samsung M393A2G40EB1-CRC utilizes a dual rank layout, aligning with the category’s focus on balanced performance and capacity. Dual rank RDIMMs are often preferred in systems where maximizing channel utilization is a priority, as they provide more flexibility for interleaving strategies compared to single rank modules.

CAS Latency

The CL17 latency rating reflects the number of clock cycles between a read command and the availability of data. In server memory categories, timing parameters are selected to prioritize stability and compatibility over aggressive performance tuning. The Samsung M393A2G40EB1-CRC adheres to JEDEC-standard timing profiles that ensure predictable behavior across supported platforms. While lower latency figures are often emphasized in consumer markets, enterprise environments value consistency and error-free operation. The timing characteristics of this memory category are optimized for workloads that benefit from sustained throughput and minimal jitter rather than peak benchmark scores.

288-Pin Form Factor

The 288-pin DIMM form factor is standard for DDR4 memory modules. In RDIMM categories, this form factor accommodates additional components such as the register and ECC circuitry while maintaining compatibility with server motherboard slots. The physical layout is designed to optimize airflow and thermal dissipation in densely populated server chassis. Server memory modules are often installed in close proximity, making thermal considerations critical. The Samsung M393A2G40EB1-CRC is designed to operate within specified temperature ranges under continuous load, aligning with data center cooling strategies and chassis airflow designs.