SAMSUNG M393B2G70EBO-CMAQ2 Ecc Server Ram 2RX4 PC3-14900R-13-13-E2-D4

( Brand: Samsung ), ( Manufacturer Part Number: M393B2G70EBO-CMAQ2 ), ( Model: 16GB 2RX4 PC3-14900R-13-13-E2-D4 ), ( Form Factor: Rdimm ), ( Type: Ddr3 Sdram ), ( Total Capacity: 16 Gb ), ( Bus Speed: Pc3-14900r ), ( Memory Features: Ecc Memory, Registered )

Review SAMSUNG 16gb 2rx4 Ecc Reg Server Ram

The **Samsung M393B2G70EBO-CMAQ2 (2Rx4 PC3-14900R-13-13-E2-D4 ECC Registered DDR4 Server Memory)** is a high-performance, enterprise-grade memory module meticulously engineered to meet the demanding requirements of modern data centers, high-end servers, and mission-critical workloads. Designed with reliability and efficiency in mind, this **256GB (2x 128GB) DDR4 SDRAM module** delivers exceptional speed and capacity, making it an ideal choice for servers running complex applications, virtualization environments, or large-scale database operations. Operating at a robust **1,490 MHz (PC3-14900R)** clock speed, this memory module ensures rapid data transfer rates, significantly enhancing system responsiveness and throughput for intensive computational tasks. The **ECC (Error-Correcting Code) Registered** architecture provides an additional layer of data integrity, actively detecting and correcting single-bit errors to prevent costly downtime and data corruption, which is particularly critical in environments where uptime and accuracy are non-negotiable.

Built with **low-power, high-density** Samsung memory chips, this module adheres to strict industry standards for performance and endurance, ensuring consistent operation even under sustained heavy loads. The **2Rx4 configuration** (two ranks of four DIMMs per module) optimizes memory bandwidth and latency, allowing for smoother multitasking and improved scalability in multi-socket server systems. The **D4 (DDR4) specification** not only supports advanced memory features like **ODT (On-Die Termination)** and **FBDIMM (Fully Buffered DIMM) compatibility** but also ensures backward and forward compatibility with a wide range of server platforms, including those from major manufacturers like Dell, HP, Lenovo, and IBM. This flexibility makes it a versatile upgrade option for both legacy and cutting-edge server architectures.

Beyond its technical prowess, this memory module is constructed with **industrial-grade components**, featuring robust heat dissipation and stable voltage regulation to maintain peak performance across extended operational periods. The **registered** design helps mitigate signal integrity issues in high-density server configurations, reducing the risk of data corruption and system instability. Whether deployed in a **cloud computing infrastructure, high-frequency trading platform, or large-scale AI/ML workload**, this module s combination of **high capacity, error correction, and optimized speed** ensures that your server environment operates at its full potential with minimal latency and maximum reliability. Ideal for administrators seeking to future-proof their infrastructure, the **Samsung M393B2G70EBO-CMAQ2** exemplifies the pinnacle of server memory technology, delivering uncompromising performance for the most demanding enterprise applications.

**Pros and Cons of the Samsung M393B2G70EBO-CMAQ2 (2x8GB, PC3-14900R, DDR3, ECC, Registered, Server-Grade RAM)**

1. **Server-Grade Reliability** This RAM module is designed for enterprise and server use, offering higher durability and stability compared to consumer-grade memory. It is built to withstand continuous operation in demanding environments, reducing the risk of failures in critical systems.

2. **ECC (Error-Correcting Code) Support** ECC memory detects and corrects single-bit errors, which is essential for data integrity in servers, databases, and workloads where accuracy is non-negotiable. This helps prevent crashes and corruption in critical applications.

3. **Registered (Buffered) Memory** The registered (buffered) design reduces the load on the memory controller, improving performance in multi-socket systems and large-scale servers. It also helps stabilize memory timing, which is beneficial in high-end configurations.

4. **Low Latency (CL9)** With a CAS latency of 9, this RAM offers relatively fast response times for server workloads, though it is not as low as some high-performance consumer RAM. For most server applications, this latency is sufficient.

5. **DDR3-14900R (1866MHz) Speed** While not the fastest DDR3 memory available, 14900R (1866MHz) is a solid speed for server applications, balancing performance and compatibility with older server hardware.

6. **Compatibility with Older Server Platforms** DDR3 is still widely used in older server motherboards, making this RAM a practical choice for upgrading legacy systems without requiring a full hardware refresh.

7. **240-Pin DIMM Form Factor** Standard form factor ensures broad compatibility with most server motherboards, including those from Dell, HP, IBM, and other enterprise vendors.

8. **Long-Term Availability** As a mature technology, DDR3 RAM remains widely available, making it easier to find replacements or additional modules if needed.

---

1. **Outdated Technology (DDR3)** DDR3 is several generations old, and modern server workloads (especially those involving AI, virtualization, or high-speed networking) often benefit from newer technologies like DDR4 or DDR5. This module may become obsolete sooner, limiting future upgrade paths.

2. **Lower Bandwidth Compared to DDR4/DDR5** DDR3-1866 has a maximum bandwidth of 23.3 GB/s per module, whereas DDR4-3200 or DDR5-4800 offers significantly higher bandwidth (up to 51.2 GB/s per module in DDR5). This can be a bottleneck in modern applications requiring high memory throughput.

3. **Higher Power Consumption** DDR3 modules generally consume more power than newer DDR4/DDR5 modules, which can impact server efficiency and cooling requirements in large-scale deployments.

4. **Limited Performance Scaling** For workloads that are memory-bound (e.g., large-scale databases, virtualization, or high-performance computing), DDR3 s lower bandwidth and latency may become a limiting factor compared to newer memory generations.

5. **Higher Cost per GB Over Time** While this module is reasonably priced for its capacity, newer DDR4 or DDR5 ECC RAM often offers better performance per dollar in modern systems. Over time, the cost efficiency of DDR3 diminishes as newer technologies improve.

6. **Fewer Features for Modern Workloads** Newer memory technologies include advanced features like NV-DIMM (non-volatile DIMM), persistent memory, and improved error correction for emerging workloads (e.g., in-memory databases). DDR3 lacks these innovations.

7. **Potential Compatibility Issues with Newer Servers** Many modern servers (especially those from Intel or AMD) are designed with DDR4 or DDR5 in mind. While this module may work in older servers, it may not be supported in newer platforms, limiting its long-term usefulness.

---

The **Samsung M393B2G70EBO-CMAQ2** is a solid choice for **legacy server environments, older enterprise systems, or applications where ECC and registered memory are critical**. It excels in reliability, stability, and compatibility with outdated server hardware. However, for **modern workloads, high-performance computing, or future-proofing**, newer DDR4 or DDR5 ECC RAM would be a better long-term investment due to superior bandwidth, lower latency, and better efficiency.

If your server is already running on DDR3 and you need additional capacity for **database servers, file servers, or legacy applications**, this module is a practical and cost-effective solution. But if you are planning to upgrade or deploy a new server, consider **DDR4 or DDR5 ECC RAM** to take advantage of modern performance improvements.

- You are maintaining or upgrading an **older DDR3 server**.

- Your workload requires **ECC and registered memory** (e.g., databases, virtualization, or mission-critical applications).

- You need **reliable, low-latency memory** for a system where DDR3 is the only option.

- You are deploying a **new server** with DDR4 or DDR5 support.

- Your workload is **memory-intensive** (e.g., AI/ML, high-performance computing, or large-scale virtualization), where DDR4/DDR5 would provide better throughput.

- You want **long-term scalability** and plan to upgrade hardware in the next few years.

For most **new deployments**, prioritize **DDR4 or DDR5 ECC RAM** for better performance and future compatibility. However, for **legacy systems**, this Samsung module remains a dependable choice.

Details:

We care about each buyer and strive to solve any problem in the best business manner. Samsung 16GB 2Rx4 PC3-14900R-13-13-E2-D4 ECC REG Server RAM M393B2G70EBO-CMAQ2 Tested Working. Please carefully review the photos and details of item before purchasing to avoid buying incorrect. Any parts not photographed WILL NOT be included.

Cosmetic issues are not covered under the guarantee. We must receive return/exchange items.

part #: m393b2g70ebocmaq2 prices

• $19.99-$21.00

specifications servermemor:

• brand: Samsung
• mpn: M393b2g70ebo-cmaq2
• model: 16gb 2rx4 Pc3-14900r-13-13-e2-d4
• form factor: Rdimm
• type: Ddr3 Sdram
• total capacity: 16 Gb
• bus speed: Pc3-14900r
• memory features: Ecc Memory, Registered

returns servermemor:

• policy: Returns Accepted
• method: Money back
• paid by: Seller
• time: 30 Days

offer servermemor:

• options: Ship-to-home
• started: May 16, 2026
• availability: In Stock
• sold: 0

shipping servermemor:

• transit: 3-5 Days
• cost: $0.00
• carrier: USPS
• class: Standard
• service: USPS Ground Advantage
• type: Fixed

payments servermemor:

• other
• credit card: Discover
• wallet: Apple-pay

seller servermemor:

• city: Saint Paul, Minnesota
• # reviews: 20938
• rating: 99.8%

general servermemor:

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

Samsung M393B2G70EBO-CMAQ2 Is Similar To:

• 0.09744922496769814 Samsung Ecc Reg Ram (32.5% similar) No other accessories hardware software. I'll get back to you as soon I can...(November 17th, 2018)
• 0.11338225633667265 Lot Samsung Ecc Server Ram Memory (33.6% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(March 27th, 2018)
• 0.1258726855836516 Lot Samsung Server Vlp Ram Ibm (28.3% similar) I'll get back to you as soon I can. Condition: used, working, pictured one but total 36 same if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(October 19th, 2018)
• 0.35100209741590715 Hp Samsung Ecc Reg (25.9% similar) I'll get back to you as soon I can. No other accessories hardware software...(October 12th, 2018)
• 0.3518165772947017 Samsung Cn Ram Ecc Reg Qty (29.3% similar) No other accessories hardware software. I'll get back to you as soon I can...(May 7th, 2018)
• 0.4190561585571104 Lot Samsung Ecc Server Ram (35.8% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(October 13th, 2018)
• 0.4196896457027133 Samsung Ecc Reg Ram (32.8% similar) No other accessories hardware software. I'll get back to you as soon I can...(November 9th, 2018)
• 0.42639317034624824 Samsung Server Vlp Ram Ibm (29% similar) I'll get back to you as soon I can. Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(October 19th, 2018)
• 0.7823584412062607 Samsung Reg Ecc Ram Cn Qty (29.3% similar) I'll get back to you as soon I can. No other accessories hardware software...(June 19th, 2018)
• 0.850481806304197 Lot Samsung Hynix Server Ecc Ram (31.3% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(October 16th, 2018)
• 0.9516050138760368 Samsung Registered Ecc Memory (30.2% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(May 26th, 2018)