SAMSUNG M393A4K40DB2-CVFCO Ecc Server Memory 32GB 2RX4 PC4-2933Y RB2-12 DDR4

( Brand: Samsung ), ( Manufacturer Part Number: M393A4K40DB2-CVFCO ), ( Model: M393A4K40DB2-CVFCO K ), ( Form Factor: Rdimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 32 Gb ), ( Unit Type: Unit ), ( Bus Speed: Pc4-23400 ), ( Memory Features: Registered )

Review SAMSUNG 2rx4 Ddr4 Ecc Server Memory

The **Samsung M393A4K40DB2-CVFCO 32GB DDR4 RDIMM ECC Registered Memory Module** is a high-performance, enterprise-grade memory solution engineered to deliver exceptional reliability, speed, and scalability for demanding server environments. Part of Samsung s premium **M393 series**, this module is designed to meet the rigorous demands of modern data centers, cloud computing, and high-performance computing (HPC) workloads where stability, low latency, and fault tolerance are critical. With a **32GB capacity per rank** and a **2Rx4 configuration** (two ranks, four channels), this memory module maximizes bandwidth and throughput, ensuring seamless operation in multi-socket servers that require robust memory expansion. The **PC4-2933Y** specification indicates a **2933 MHz** operational frequency, optimized for high-speed data processing while maintaining energy efficiency, making it ideal for applications such as virtualization, database management, and AI/ML workloads that demand both speed and precision.

Built with **ECC (Error-Correcting Code) technology**, this module actively detects and corrects single-bit errors in real time, significantly reducing the risk of data corruption and system crashes an essential feature for mission-critical environments where uptime and data integrity are non-negotiable. The **Registered (RDIMM) architecture** further enhances performance by buffering commands from the memory controller, reducing signal interference and improving signal integrity across longer memory buses, which is particularly beneficial in servers with multiple memory slots. The **CV (Certified Vendor) designation** ensures that this module has undergone rigorous compatibility testing with leading server manufacturers, guaranteeing seamless integration with a wide range of enterprise-grade platforms, including those from Dell, HP, Lenovo, and others. Additionally, the **low-power (Y) variant** of the PC4-2933 specification optimizes power consumption without compromising performance, contributing to lower operational costs and reduced heat generation in densely populated server racks.

Crafted with Samsung s advanced **16nm process technology**, this memory module delivers superior reliability and endurance, featuring **128-bit wide data buses** and **low-power DDR4 (LP-DDR4) optimized timing**, which enhance both speed and efficiency. The **240-pin SODIMM form factor** (though typically installed in standard server DIMM slots) ensures compatibility with a broad spectrum of server motherboards, while the **CL19 (CAS Latency) timing** balances responsiveness with power efficiency, making it suitable for workloads that require a mix of latency-sensitive and throughput-intensive operations. Whether deployed in a **2U blade server, a high-density rack server, or a blade system**, this module provides the scalability and performance needed to handle large-scale data processing, real-time analytics, and high-volume transactional systems. For IT administrators and data center operators seeking a balance of speed, reliability, and cost-effectiveness, the **Samsung M393A4K40DB2-CVFCO** stands as a premium choice, ensuring peak performance while minimizing downtime and maintenance overhead.

### **Pros and Cons of buying a Samsung M393A4K40DB2-CVFCO (32GB, 2Rx4, PC4-2933Y, ECC, RDIMM) Server Memory**

1. **High Performance and Speed** The module supports **DDR4-2933 MT/s**, which is faster than standard DDR4-2400, improving data transfer rates in server workloads. This is beneficial for applications requiring low latency, such as databases, virtualization, and high-frequency trading.

2. **Error-Correcting Code (ECC) Support** ECC memory helps detect and correct single-bit errors, reducing data corruption risks in critical server environments. This is essential for financial, healthcare, and enterprise applications where data integrity is paramount.

3. **Registered DIMM (RDIMM) Design** RDIMMs are optimized for multi-channel server architectures, reducing power consumption and improving stability compared to unbuffered DIMMs. They are widely compatible with enterprise-grade servers.

4. **Low Power Consumption** The **PC4-2933Y** designation indicates a **1.2V voltage**, which is more power-efficient than higher-voltage DDR4 modules, leading to lower operational costs in data centers.

5. **Reliability and Stability** Samsung is a reputable manufacturer with a strong track record in memory production. This module is designed for **24/7 server use**, minimizing failure risks in production environments.

6. **Compatibility with Modern Servers** The **2Rx4 configuration** (two ranks, four DIMMs per channel) is common in enterprise servers, ensuring broad compatibility with Intel Xeon and AMD EPYC-based systems.

7. **Long-Term Availability** Samsung s enterprise-grade memory modules are often stocked by major distributors, reducing the risk of obsolescence compared to consumer-grade RAM.

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1. **Higher Cost Compared to Consumer RAM** Server-grade ECC RDIMMs are significantly more expensive than non-ECC or UDIMM modules. For non-critical workloads, this may not be justified.

2. **Limited Upgrade Flexibility** Some servers require **registered or load-reduced DIMMs (LRDIMMs)** for optimal performance. If the system supports only LRDIMMs, this module may not be usable, requiring additional research before purchase.

3. **Overkill for Non-Server Use** This module is **not recommended for desktop PCs**, gaming, or consumer-grade systems. Attempting to use it in a non-server environment may result in compatibility issues or void warranties.

4. **Potential Overprovisioning** If the server already has sufficient memory, purchasing this module may lead to unused capacity, increasing costs without performance gains.

5. **Vendor Lock-In Risk** Some enterprise servers have proprietary memory configurations. While Samsung is widely compatible, verifying exact model support with the server manufacturer (e.g., Dell, HP, Lenovo) is crucial to avoid mismatches.

6. **No On-DIE ECC in Some Cases** While this module has ECC, some newer server architectures (e.g., AMD EPYC with certain chipsets) may require **On-DIE ECC** for full error correction. Confirming compatibility is necessary.

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The **Samsung M393A4K40DB2-CVFCO** is an excellent choice for **enterprise servers, virtualization hosts, database servers, and high-availability workloads** where **data integrity, speed, and reliability** are critical. Its **ECC, RDIMM design, and DDR4-2933 support** make it well-suited for demanding environments.

However, it is **not cost-effective for consumer or gaming use** and may be **overkill for smaller servers** with lower memory demands. Before purchasing, ensure:

- The server supports **DDR4-2933 RDIMMs**.

- The module is compatible with the **specific server model** (check manufacturer documentation).

- The workload **justifies the cost** of ECC and registered memory.

If these conditions are met, this is a **high-quality, reliable memory module** that will enhance server performance and stability. If not, consider **non-ECC or lower-speed alternatives** to reduce costs.

- **Buy if:** You are running a **production server (e.g., database, virtualization, financial systems)** and need **ECC, RDIMM, and high-speed memory**.

- **Avoid if:** You are using a **desktop PC, gaming rig, or a server with lower memory requirements**.

- For **budget servers**, look for **non-ECC DDR4-2400/2666**.

- For **workstations**, consider **ECC UDIMMs** if the platform supports them.

- Always **check the server s memory QVL (Qualified Vendor List)** before purchasing.

This module is a **strong investment for enterprise environments** but should not be used outside its intended purpose.

Details:

Each memory module comes with a plastic case and anti-static bag. Pulled from a working server. Samsung 32GB 2Rx4 PC4 - 2933Y RB2 12 MH1 DDR4 Server RAM, M393A4K40DB2-CVFCO K RAM.

part #: m393a4k40db2 prices

• $160.00-$330.00

specifications servermemor:

• brand: Samsung
• mpn: M393a4k40db2-cvfco
• model: M393a4k40db2-cvfco K
• form factor: Rdimm
• type: Ddr4 Sdram
• total capacity: 32 Gb
• unit type: Unit
• bus speed: Pc4-23400
• memory features: Registered

seller servermemor:

• rating: 100.0%
• city: Utica, Michigan
• # reviews: 3

general servermemor:

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

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• policy: No Returns

offer servermemor:

• options: Ship-to-home
• started: April 8, 2026
• sold: 0
• availability: In Stock

payments servermemor:

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• wallet: Apple-pay
• other

shipping servermemor:

• type: Fixed
• transit: 5-10 Days
• class: Standard
• cost: $0.00
• carrier: USPS
• service: USPS Ground Advantage

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