M393A4G43CB4-CWECO Samsung 32GB 3200MBPS PC4-25600 CL22 Ecc Registered Dual Rank 1.2v DDR4 SDRAM 288-Pin RDIMM Memory

Product Overview of the Samsung 32GB DDR4 ECC RAM

The Samsung M393A4G43CB4-CWECO is a professional-grade 32GB DDR4 SDRAM memory module designed for enterprise servers and workstations. This high-performance RAM delivers stability, speed, and data protection for demanding computing environments such as virtualization, databases, and cloud servers.

General Information

Manufacturer Details

• Brand: Samsung
• Model Number: M393A4G43CB4-CWECO
• Product Name: 32GB DDR4 SDRAM Memory Module

Technical Specifications

Memory Performance

• Storage Capacity: 32GB
• Memory Type: DDR4 SDRAM
• Bus Speed: 3200MBPS (DDR4-3200 / PC4-25600)
• CAS Latency: CL22

Advanced Features

• Data Integrity Check: ECC (Error-Correcting Code)
• Signal Processing: Registered (RDIMM)
• Rank Configuration: Dual Rank
• Voltage: 1.2V for energy efficiency

Form Factor and Build

• Form Factor: 288-pin RDIMM

Compatibility

• Enterprise servers requiring DDR4 ECC RDIMM memory
• Workstations with registered memory support
• Intel Xeon-based server motherboards
• AMD EPYC server platforms
• Virtualization and cloud computing environment

The Enterprise-Grade DDR4 RDIMM Memory Category

The category of DDR4 ECC Registered DIMM (RDIMM) memory modules is designed specifically for enterprise servers, professional workstations, and mission-critical computing environments where stability, data integrity, and sustained performance are mandatory. The Samsung M393A4G43CB4-CWECO 32GB 3200MBPS PC4-25600 CL22 ECC Registered Dual Rank 1.2V DDR4 SDRAM 288-Pin RDIMM Memory Kit fits squarely into this category, representing a high-capacity, high-reliability solution for modern data centers and business infrastructures.

Unlike consumer desktop memory, RDIMM modules are built to handle continuous workloads, high transaction volumes, and multi-user environments. This category supports error correction, advanced buffering, and compliance with strict JEDEC standards, making it essential for virtualization, databases, cloud computing, and enterprise applications.

Samsung Server Memory

Samsung is globally recognized as one of the largest and most trusted manufacturers of semiconductor memory. In the server memory category, Samsung modules are valued for consistent quality, long product lifecycles, and compatibility across major server platforms. The M393A4G43CB4-CWECO belongs to Samsung’s enterprise RDIMM lineup, which is designed and tested for 24/7 operations in demanding environments.

Samsung’s server memory products are typically validated by major OEMs and system integrators, ensuring that this category remains a safe and preferred choice for IT professionals who prioritize reliability and predictable performance.

ECC Registered DDR4 Memory

Error Correcting Code (ECC)

ECC memory includes additional circuitry that detects and corrects single-bit memory errors in real time. In enterprise systems, even minor memory errors can lead to crashes, corrupted data, or system downtime. ECC significantly reduces these risks, making this category indispensable for financial systems, scientific computing, healthcare IT, and cloud servers.

Registered DIMM (RDIMM)

RDIMM memory uses a register between the memory controller and DRAM chips. This buffer reduces electrical load and improves signal integrity, allowing systems to support larger memory capacities and more modules per channel. Compared to unbuffered DIMMs, RDIMMs provide superior scalability and stability, which is why they dominate the server memory category.

DDR4 Technology Benefits

DDR4 memory brings higher bandwidth, improved efficiency, and reduced power consumption compared to DDR3. Operating at just 1.2V, DDR4 RDIMM modules like the Samsung M393A4G43CB4-CWECO deliver better performance per watt, supporting modern server architectures while controlling energy costs.

32GB Module Capacity

A 32GB RDIMM module is considered a high-capacity option within the DDR4 server memory category. It allows system builders to scale total memory to hundreds of gigabytes or even terabytes, depending on motherboard support. This capacity is ideal for virtualization platforms, in-memory databases, large analytics workloads, and enterprise resource planning systems.

3200MBPS / PC4-25600 Speed

With a rated speed of 3200MBPS (PC4-25600), this category represents the high-performance tier of DDR4 memory. The increased bandwidth allows faster data transfers between CPU and memory, improving application responsiveness and throughput in multi-core server environments.

CL22 Latency

CAS latency 22 is typical for high-capacity DDR4 RDIMM modules at 3200MT/s. In enterprise workloads, latency stability and predictability are often more important than ultra-low latency. This category prioritizes balanced performance, ensuring consistent access times even under heavy load.

Dual Rank

Dual rank memory modules contain two sets of memory banks that can be accessed alternately. This improves effective bandwidth and memory utilization efficiency. In server systems, dual rank RDIMMs often provide better performance than single rank modules due to improved memory interleaving.

1.2V Low Power

Operating at 1.2 volts, this category supports energy-efficient computing. Lower voltage translates to reduced power consumption and heat output, which is critical in data centers where energy costs and thermal management are major concerns.

288-Pin RDIMM Form Factor

The 288-pin form factor is standard for DDR4 RDIMM modules, ensuring compatibility with modern server motherboards. This standardized design allows easy replacement, upgrades, and integration across various platforms.

Use Cases

Enterprise Servers

This memory category is primarily used in enterprise rack and tower servers. It supports multi-socket architectures, high core count CPUs, and large memory footprints required for business-critical workloads.

Virtualization and Cloud Computing

Virtual machines rely heavily on system memory. High-capacity RDIMM modules enable hosting dozens or hundreds of virtual machines on a single physical server while maintaining performance and isolation.

Database and In-Memory

Modern databases, especially in-memory databases like SAP HANA or Redis, benefit significantly from large, reliable memory pools. This category ensures low error rates and consistent data availability.

Comparison with Other Memory

RDIMM vs UDIMM

Unbuffered DIMMs (UDIMM) are common in desktops and workstations but cannot scale to the same capacities or stability levels as RDIMMs. This category supports higher density and better signal integrity.

RDIMM vs LRDIMM

Load-Reduced DIMMs (LRDIMM) offer even higher capacities by using additional buffering. However, RDIMMs like this Samsung module provide a balance between cost, performance, and capacity, making them more widely used in mainstream enterprise servers.

DDR4 vs DDR5 in Servers

While DDR5 is emerging in newer platforms, DDR4 remains dominant in many deployed systems. This category benefits from mature technology, proven reliability, and widespread compatibility.