SAMSUNG M393A8G40CB4-CWEBY Rdimm Ecc Server Ram 64GB DDR4-3200

( Brand: Samsung ), ( Manufacturer Part Number: M393A8G40CB4-CWEBY ), ( Form Factor: Rdimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 64 Gb ), ( Number Of Pins: 288 ), ( Bus Speed: Pc4-25600 ), ( Country Of Origin: China ), ( Memory Features: Ecc Memory, Registered )

Review SAMSUNG Ddr4-3200 Rdimm Ecc Registered Server Ram

The **Samsung M393A8G40CB4-CWEBY 64GB DDR4-3200 RDIMM ECC Server Memory** is a high-performance, enterprise-grade memory module meticulously engineered to deliver unparalleled reliability, speed, and efficiency in demanding server environments. Part of Samsung s premium **M393 series**, this **64GB (8x8GB) RDIMM (Registered DIMM)** module is designed to meet the rigorous requirements of modern data centers, cloud computing platforms, and high-performance computing (HPC) workloads. Built with **low-power, high-density DDR4 technology**, it operates at an optimized **3200MHz clock speed**, ensuring rapid data transfer rates and reduced latency for seamless multitasking and resource-intensive applications. The inclusion of **ECC (Error-Correcting Code) memory** provides robust protection against data corruption, safeguarding critical information in mission-critical systems where uptime and accuracy are non-negotiable.

This module adheres to **JEDEC standards**, ensuring seamless compatibility with a wide range of **Intel Xeon and AMD EPYC-based servers**, including models from major manufacturers like Dell, HP, Lenovo, and Supermicro. The **RDIMM architecture** incorporates a registered buffer chip, which helps stabilize signal integrity over longer memory channels, reducing the risk of data errors in large-scale configurations. With a **64GB capacity**, it is ideal for high-memory workloads such as virtualization, database management, AI/ML training, and large-scale analytics, where memory bandwidth and capacity are critical for performance optimization. The module s **low-profile design** and **standard 288-pin DIMM form factor** ensure easy installation and scalability in server racks, making it a versatile choice for both new builds and upgrades.

Samsung s commitment to quality is evident in the **high-reliability components** used in this module, including **low-power DDR4 chips** that enhance energy efficiency while maintaining peak performance. The **CWEBY designation** indicates a **low-power variant**, making it particularly suitable for energy-conscious data centers looking to reduce operational costs without compromising speed. Additionally, the module is built to withstand the thermal and mechanical stresses of continuous operation, contributing to extended hardware lifespan and reduced maintenance overhead. Whether deployed in a **bare-metal server, hyperconverged infrastructure, or a high-density blade system**, this memory module ensures that your infrastructure remains agile, secure, and capable of handling the most demanding computational tasks with precision and efficiency.

**Pros and Cons of buying a Samsung M393A8G40CB4-CWEBY (64GB DDR4-3200 RDIMM ECC Server RAM)**

1. **High Performance and Speed** DDR4-3200 memory operates at a higher clock speed compared to standard DDR4-2400 or DDR4-2666 modules, which can improve system responsiveness, especially in CPU-bound workloads like virtualization, databases, or high-end computing tasks.

2. **Error Correction (ECC)** ECC memory helps detect and correct single-bit errors, reducing the risk of data corruption in critical applications such as servers, databases, or financial systems. This is particularly valuable in enterprise environments where data integrity is paramount.

3. **Registered (RDIMM) Design** RDIMM modules are designed to work with server-grade motherboards, providing better signal integrity and stability over lower-cost unbuffered (UDIMM) or FB-DIMM modules. They are optimized for multi-socket systems and high-channel configurations.

4. **Reliability and Stability** Samsung is a reputable manufacturer with a strong track record in producing high-quality memory modules. These modules are built to withstand continuous operation in server environments, reducing the likelihood of failures over time.

5. **Compatibility with High-End Servers** This module is designed for enterprise-level servers, making it suitable for use in data centers, cloud infrastructure, or workstations running demanding applications like virtualization (VMware, Hyper-V), CAD/CAM software, or AI/ML workloads.

6. **Long-Term Availability** Samsung s RDIMM modules are widely stocked by server manufacturers and distributors, ensuring availability even for older server models that still require DDR4 support.

7. **Scalability** DDR4-3200 RDIMM modules can be paired with other compatible modules to scale memory capacity in multi-socket systems, which is essential for high-performance computing (HPC) and large-scale virtualization setups.

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1. **Cost** DDR4-3200 ECC RDIMM modules are significantly more expensive than standard DDR4-2400 or DDR4-2666 modules. The price per gigabyte is higher, which may not be justified for budget-conscious or non-critical applications.

2. **Power Consumption** Higher clock speeds (3200 MHz) generally result in increased power draw compared to slower modules. This can lead to higher cooling requirements and potentially higher electricity costs in data centers.

3. **Heat Generation** Faster memory modules generate more heat, which may require additional cooling solutions (such as better-case airflow or liquid cooling) to maintain optimal operating temperatures.

4. **Overkill for Some Use Cases** If you are running a non-server workload (e.g., a home office PC, gaming rig, or general-purpose desktop), the performance benefits of DDR4-3200 may not be noticeable. In such cases, cheaper, lower-speed memory (e.g., DDR4-3200 CL16 or DDR4-2666) may suffice.

5. **Limited Upgrade Path** Some newer server platforms may support faster memory (e.g., DDR4-3600 or DDR5), rendering this module obsolete if you plan to upgrade your server hardware in the future. However, DDR4 is still widely supported in many enterprise environments.

6. **Compatibility Risks** While this module is designed for server use, there is always a risk of compatibility issues if paired with non-server-grade motherboards or if the BIOS/UEFI does not fully support the module s specifications (e.g., timing settings). Always verify compatibility with your specific server model.

7. **Reduced Lifespan in Non-Server Environments** Server-grade memory is built for durability, but if used in a non-server setup (e.g., a desktop), the module may still experience wear over time due to less optimized power delivery and cooling.

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The **Samsung M393A8G40CB4-CWEBY (64GB DDR4-3200 RDIMM ECC)** is an excellent choice for **enterprise servers, data centers, virtualization hosts, or high-performance workstations** where reliability, error correction, and speed are critical. Its registered design and ECC capabilities make it ideal for environments where data integrity and stability are non-negotiable.

However, for **non-server use cases (e.g., gaming PCs, budget workstations, or general-purpose desktops)**, the cost and performance benefits may not justify the investment. In such scenarios, a lower-cost DDR4-3200 or DDR4-2666 module (non-ECC, unbuffered) would likely be more practical.

If you are certain that this module fits your server s requirements and budget, it is a **strong, reliable, and high-performance option**. Always double-check compatibility with your motherboard and server model before purchasing.

- You are running a **server, virtualization host, or enterprise workload** (e.g., databases, VMware, Hyper-V).

- You require **ECC memory for data integrity**.

- Your server supports **DDR4-3200 RDIMM** and you need **high-speed memory for performance-critical tasks**.

- You prioritize **reliability and long-term stability** in a data center environment.

- You are using a **non-server PC** (e.g., gaming rig, home office workstation) where cheaper memory would suffice.

- Your budget is limited, and you can achieve similar performance with a **lower-cost DDR4-2666 or DDR4-3200 non-ECC module**.

- You plan to **upgrade to DDR5 in the near future**, as this module may become obsolete.

For most **server deployments**, this is a **solid, high-quality choice** that balances speed, reliability, and compatibility. For everything else, consider more cost-effective alternatives.

Details:

part #: m393a8g40cb4 prices

• $539.99-$860.00

specifications servermemor:

• brand: Samsung
• mpn: M393a8g40cb4-cweby
• form factor: Rdimm
• type: Ddr4 Sdram
• total capacity: 64 Gb
• number of pins: 288
• bus speed: Pc4-25600
• country of origin: China
• memory features: Ecc Memory, Registered

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seller servermemor:

• city: Burbank, Illinois
• # reviews: 519
• rating: 100.0%

offer servermemor:

• quantity: 2
• availability: In Stock
• started: April 15, 2026
• best offers: True
• options: Ship-to-home
• sold: 0

shipping servermemor:

• cost: $0.00
• type: Calculated
• transit: 3-9 Days
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS

returns servermemor:

• policy: No Returns

general servermemor:

• Enterprise Networking, Servers > Server Components > Server Memory RAM
• condition: Used

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