SAMSUNG M393A2G40DB0B-CPB00 Ecc Dimm Server Ram 128GB 8X16GB DDR4-2133

( Brand: Samsung ), ( Manufacturer Part Number: M393A2G40DB0B-CPB00 ), ( Form Factor: Dimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 128 Gb ), ( Capacity Per Module: 16 Gb ), ( Number Of Pins: 288 ), ( Bus Speed: Pc4-17000 ), ( Memory Features: Ecc Memory, Registered )

Review SAMSUNG 8x16gb Ddr4-2133 Ecc Registered Dimm Server Ram

The **Samsung M393A2G40DB0B-CPB00** is a high-performance, enterprise-grade **128GB DDR4 server memory module** designed to deliver exceptional reliability, speed, and efficiency in demanding data center and server environments. This **8x16GB (8GB x 8-rank) RDIMM (Registered DIMM) module** operates at an optimized **DDR4-2133 MHz** clock speed, ensuring seamless data transfer and reduced latency for mission-critical workloads. Built with **ECC (Error-Correcting Code) technology**, this module actively detects and corrects single-bit errors, significantly enhancing data integrity and minimizing the risk of system crashes or corrupted data critical for applications in virtualization, high-performance computing, and large-scale database management.

The **M393A2G40DB0B-CPB00** is engineered with **low-power, high-efficiency components**, making it ideal for energy-conscious data centers while maintaining peak performance. Its **8-rank configuration** allows for deeper memory channels, improving bandwidth and throughput for multi-threaded applications. The module adheres to **JEDEC standards**, ensuring full compatibility with a wide range of **Intel Xeon, AMD EPYC, and other enterprise-grade server platforms**, including those from Dell EMC PowerEdge, HPE ProLiant, and Lenovo ThinkSystem. The **CPB00 (CAS Latency 15-15-15-35) timing profile** strikes a balance between speed and stability, making it suitable for both general-purpose servers and specialized workloads requiring consistent performance.

Samsung s rigorous **quality control and testing processes** ensure that each module undergoes **stress testing, burn-in procedures, and thermal validation** to guarantee long-term reliability in high-temperature environments. The **low-profile, dual-rank design** optimizes memory density while maintaining efficient heat dissipation, reducing the need for additional cooling solutions. Whether deployed in **cloud infrastructure, AI/ML training servers, or high-availability clusters**, this memory module provides the **scalability, endurance, and precision** required to handle the most intensive computational demands. For organizations prioritizing **data protection, system uptime, and future-proofing**, the **Samsung M393A2G40DB0B-CPB00** represents a robust investment in high-performance server memory.

The **Samsung M393A2G40DB0B-CPB00** (128GB, 8x16GB, DDR4-2133, ECC, RDIMM) is a high-end server memory module designed for enterprise and workstation use. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Capacity and Scalability**

- The 128GB configuration (8x16GB) is ideal for servers requiring large memory pools, such as virtualization hosts, database servers, or high-performance computing (HPC) workloads. It allows for future expansion if additional slots are available.

2. **DDR4-2133 MHz Speed**

- DDR4-2133 is a balanced speed for most server workloads, offering better performance than slower DDR4 modules (e.g., 1600 MHz) while avoiding the power and heat overhead of higher-speed variants (e.g., DDR4-2666 or DDR4-3200). It strikes a good compromise between cost and performance for general server use.

3. **ECC (Error-Correcting Code) Support**

- ECC memory is critical for servers to detect and correct single-bit errors, preventing data corruption in critical applications like databases, virtualization, or financial systems. This makes it far more reliable than non-ECC memory for production environments.

4. **RDIMM (Registered DIMM) Design**

- RDIMMs use a registered buffer chip to reduce signal integrity issues on longer memory buses, which is essential for multi-socket servers (e.g., dual-CPU systems). This design improves stability and allows for higher memory capacity per channel compared to unbuffered DIMMs (UDIMMs).

5. **Samsung s Reputation for Quality**

- Samsung is a trusted manufacturer in the server memory market, known for reliability, compatibility with major server platforms (e.g., Dell EMC, HPE, Lenovo, Supermicro), and consistent performance. Their memory modules often have strong warranties and support.

6. **Low Latency and High Bandwidth**

- DDR4-2133 modules typically have lower latency (e.g., CL15 or CL17) compared to older DDR3 modules, improving memory throughput for CPU-bound tasks. The 2133 MHz speed also provides a good balance between speed and power efficiency.

7. **Compatibility with Modern Servers**

- This module is designed for Intel Xeon and AMD EPYC-based servers, which dominate the enterprise market. It is backward-compatible with many recent server motherboards (check your specific system s QVL for exact compatibility).

8. **Cost-Effective for High Capacity**

- While not the cheapest option, the 128GB configuration offers excellent value for servers requiring large memory footprints. Buying in bulk (e.g., multiple kits) can further reduce per-GB costs.

9. **Support for Advanced Features**

- Many server platforms that support this module offer features like memory interleaving, error logging, and advanced power management, which enhance performance and reliability in demanding environments.

10. **Long Lifespan and Reliability**

- Server-grade memory like this is built to last, with robust components and cooling solutions to handle sustained workloads. It is less likely to fail prematurely compared to consumer-grade memory.

---

### **Cons**

1. **High Cost**

- The upfront cost of 128GB of ECC RDIMM memory is significantly higher than consumer-grade DDR4 memory. For example, a 16GB DDR4-2133 ECC RDIMM might cost $100 $150, making 128GB a substantial investment. This could be prohibitive for small businesses or budget-conscious setups.

2. **Limited Upgradeability**

- If your server has only 8 DIMM slots and you install 8 modules, you cannot upgrade the memory later without replacing all modules. This is a common limitation with RDIMMs, as they require matching modules for optimal performance and compatibility.

3. **Power and Heat Considerations**

- DDR4-2133 modules consume more power than slower variants (e.g., DDR4-1600). In servers with many DIMMs, this can contribute to higher overall power draw and heat generation, requiring adequate cooling solutions.

4. **Compatibility Risks**

- While Samsung s modules are generally compatible with most server platforms, there is always a risk of compatibility issues if the server s motherboard or BIOS does not fully support the module. Always check the server s Qualified Vendor List (QVL) or consult the manufacturer before purchasing.

5. **Overkill for Light Workloads**

- If your server runs lightweight tasks (e.g., a small file server, basic web hosting, or a home lab with minimal VMs), 128GB is likely overkill. In such cases, lower-capacity modules (e.g., 32GB or 64GB) would be more cost-effective.

6. **Potential for Latency Bottlenecks**

- While DDR4-2133 is fast, some modern CPUs (especially high-end Xeon or EPYC processors) may benefit from even faster memory (e.g., DDR4-2666 or DDR4-3200). If your workload is extremely memory-intensive (e.g., large-scale databases or AI training), the 2133 MHz speed might become a bottleneck.

7. **Vendor Lock-In Concerns**

- Some server manufacturers (e.g., Dell EMC, HPE) may require you to purchase memory from their approved vendors, which can be more expensive than third-party options. While Samsung is widely supported, always verify compatibility with your specific server model.

8. **Physical Size and Installation Complexity**

- RDIMMs are physically larger and heavier than UDIMMs, which can make installation and replacement more cumbersome, especially in servers with limited access to memory slots.

9. **Depreciation Risk**

- Server memory, like other hardware, depreciates over time. If you purchase this module for a long-term project, its value may drop significantly within a few years, especially if newer, faster, or more efficient alternatives emerge.

10. **Potential for Over-Provisioning**

- Without careful planning, you might end up with more memory than necessary, leading to wasted resources. For example, a virtualization host might not need 128GB if it only runs a few lightweight VMs.

---

### **Conclusion**

The **Samsung M393A2G40DB0B (128GB, 8x16GB, DDR4-2133, ECC, RDIMM)** is an excellent choice for **enterprise servers, virtualization hosts, database servers, or high-performance computing workloads** where reliability, large memory capacity, and ECC protection are critical. Its balanced speed, Samsung s reputation for quality, and compatibility with modern server platforms make it a strong contender for demanding environments.

However, the **high cost, limited upgradeability, and potential overkill for lighter workloads** mean it may not be suitable for small businesses, home labs, or non-critical applications. If your use case requires **maximum memory capacity, error correction, and server-grade reliability**, this module is a solid investment. For other scenarios, lower-capacity or slower modules may offer better cost-performance trade-offs.

---

### **Recommendation**

- You are running a **production server** (e.g., virtualization, database, or HPC workload).

- Your server **requires 128GB of memory** for optimal performance.

- You need **ECC protection** to prevent data corruption.

- Your server s **QVL confirms compatibility** with this module.

- You are purchasing for **long-term use** where reliability is paramount.

- Your workload is **light or non-critical**, and you can get by with **32GB 64GB** of memory.

- You need **faster memory** (e.g., DDR4-2666 or DDR4-3200) for CPU-bound tasks.

- You want **flexibility for future upgrades** (e.g., UDIMMs or LRDIMMs if your server supports them).

- Budget is a **major constraint**, and you can find **equivalent or better-performing modules at a lower cost** from other vendors (e.g., Corsair, Kingston, SK Hynix).

- Always **check your server s QVL** before purchasing to avoid compatibility issues.

- If possible, **buy from a reputable server memory distributor** (e.g., Crucial, Kingston, or directly from Samsung s authorized partners) to ensure authenticity and warranty coverage.

- For **dual-socket servers**, ensure the module supports **dual-rank or multi-rank configurations** for optimal performance.

- If you plan to **mix and match modules**, ensure they are **identical in speed, capacity, and timing** to avoid stability issues.

Details:

The Samsung 128GB DDR4-2133 ECC Registered DIMM Server RAM consists of 8 modules, each with a capacity 16GB. With a total capacity of 128GB, this RAM is designed for server use, offering reliable performance enterprise networking and applications. The DDR4 SDRAM technology ensures faster data transfer speeds, while the ECC memory feature provides error correction for improved integrity. The 288-pin design and registered memory feature make it compatible with a wide range of server systems, providing high-quality efficient solution for environments.

part #: m393a2g40db0bcpb00 prices

• $139.98-$450.00

specifications servermemor:

• brand: Samsung
• mpn: M393a2g40db0b-cpb00
• form factor: Dimm
• type: Ddr4 Sdram
• total capacity: 128 Gb
• capacity per module: 16 Gb
• number of pins: 288
• bus speed: Pc4-17000
• memory features: Ecc Memory, Registered

general servermemor:

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

offer servermemor:

• started: April 25, 2026
• availability: In Stock
• best offers: True
• sold: 0
• quantity: 1
• options: Ship-to-home

seller servermemor:

• city: Fort Smith, Arkansas
• rating: 100.0%
• # reviews: 56

payments servermemor:

• wallet: Apple-pay
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• credit card: Diners-club

shipping servermemor:

• transit: 5-11 Days
• class: Standard
• carrier: USPS
• cost: $10.15
• service: USPS Ground Advantage
• type: Calculated

returns servermemor:

• policy: No Returns

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