SAMSUNG PC4-2666V-RE1-12-MA0 Ecc Server Memory 2RX8S M393A2K43BB1-CTD

( Brand: Samsung ), ( Manufacturer Part Number: PC4-2666V-RE1-12-MA0 ), ( Model: 16GB 2RX8 PC4-2666V-RE1-12-MA0 ), ( Form Factor: Rdimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 16 Gb ), ( Bus Speed: Pc4-21300 ), ( Country Of Origin: China ), ( Memory Features: Ecc Memory, Registered )

Review SAMSUNG 16gb Ecc Reg Server Memory

The **Samsung PC4-2666V-RE1-12-MA0 2Rx8 ECC Registered DDR4 Server Memory (M393A2K43BB1-CTD)** is a high-performance, enterprise-grade memory module meticulously engineered to deliver unparalleled reliability, speed, and efficiency in demanding server environments. Designed with Samsung s cutting-edge **DDR4 SDRAM technology**, this **2666 MHz (PC4-2666)** memory module operates at an optimal frequency to maximize data throughput while maintaining exceptional stability, making it an ideal choice for data centers, high-performance computing (HPC) clusters, and mission-critical workloads. Each module features a **2Rx8 configuration**, meaning it consists of two ranks with eight memory chips per rank, allowing for flexible memory channel scaling to enhance overall system bandwidth and performance.

This module incorporates **ECC (Error-Correcting Code) technology**, which actively detects and corrects single-bit errors in real-time, ensuring data integrity even under the most intensive workloads. The **registered (REG) architecture** further enhances stability by buffering commands and addresses, reducing signal interference and minimizing the risk of memory-related crashes in multi-socket server configurations. Built with Samsung s **high-density, low-power memory chips**, this module operates efficiently within standard server power envelopes while delivering sustained performance without overheating.

The **M393A2K43BB1-CTD** part number identifies this as a **128GB (16GB per module 8 modules)** configuration, though it is sold individually, allowing for scalable deployment in systems requiring incremental memory upgrades. The **CTD (Cottonwood Trail DIMM)** form factor ensures compatibility with a wide range of enterprise servers, including those from Dell, HP, Lenovo, and other major vendors, making it a versatile solution for IT administrators managing heterogeneous server environments. With its **low latency, high bandwidth, and robust error correction**, this memory module is perfectly suited for applications such as virtualization, database management, AI/ML processing, and large-scale cloud computing, where reliability and performance are non-negotiable.

### **Pros and Cons of Buying Samsung PC4-2666V-RE1-12-MA0 (2Rx8 ECC REG Server Memory, M393A2K43BB1-CTD)**

1. **High Performance and Speed** This memory module operates at **2666 MHz**, which is suitable for modern server workloads requiring fast data processing. It supports **DDR4 technology**, ensuring efficient data transfer rates.

2. **Error-Correcting Code (ECC) Support** ECC memory helps detect and correct single-bit errors, reducing data corruption risks in critical applications like databases, virtualization, and financial systems.

3. **Registered (REG) Memory** Registered memory reduces the load on the memory controller by buffering commands, making it ideal for multi-socket servers where stability is crucial.

4. **Low Latency (CL15)** The **CAS latency of 15** ensures faster response times compared to higher latency modules, improving overall system performance.

5. **Compatibility with Intel Xeon and AMD EPYC** This module is designed for **server-grade CPUs**, ensuring compatibility with enterprise-grade processors like Intel Xeon (Skylake, Cascade Lake, Ice Lake) and AMD EPYC (Rome, Milan).

6. **Reliability and Durability** Samsung is a reputable manufacturer known for high-quality server memory with robust build quality, ensuring long-term stability in demanding environments.

7. **Support for Dual-Channel Configuration** When paired with matching modules, it enables **dual-channel operation**, improving bandwidth and throughput for better performance in multi-core workloads.

8. **Server-Grade Components** The module is built with **industrial-grade components**, making it suitable for 24/7 operations in data centers.

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1. **Higher Cost Compared to Consumer Memory** Server-grade ECC REG memory is significantly more expensive than standard DDR4 modules, which may not be cost-effective for non-enterprise use.

2. **Limited Availability in Retail** This is a **server-specific module**, meaning it may not be readily available in standard retail stores and could require purchasing from enterprise distributors or OEMs.

3. **Overkill for Non-Server Use** If you are not running a **server, workstation, or high-end virtualization setup**, this memory may be unnecessary, as consumer-grade memory (non-ECC, unbuffered) would suffice.

4. **Potential Overkill for Single-Socket Systems** While REG memory is beneficial in multi-socket servers, single-socket systems (e.g., some workstations) may not fully utilize its advantages, leading to wasted investment.

5. **Compatibility Restrictions** Not all motherboards support **2666 MHz ECC REG memory**, especially budget or older server boards. Always verify **QVL (Qualified Vendor List)** compatibility with your motherboard.

6. **No Overclocking Support** Like most server memory, this module does not support overclocking, limiting performance tuning options.

7. **Higher Power Consumption** Server-grade memory tends to draw slightly more power than consumer memory, which may impact efficiency in power-sensitive setups.

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### **Conclusion and Recommendation**

This **Samsung PC4-2666V-RE1-12-MA0 (2Rx8 ECC REG)** memory module is an **excellent choice for enterprise servers, high-end workstations, virtualization hosts, and data centers** where **reliability, error correction, and performance** are critical.

You are building or upgrading a **server (Intel Xeon/AMD EPYC)**.

You need **ECC memory for data integrity** (databases, VMs, financial systems).

You require **high-speed, low-latency memory** for CPU-intensive workloads.

You are using a **multi-socket motherboard** where REG memory improves stability.

You are using a **consumer-grade PC** (gaming, office work, budget builds).

Your motherboard **does not support ECC REG memory** (check QVL).

You are on a **tight budget** and can use non-ECC memory instead.

You are running a **single-socket system** where unbuffered memory may suffice.

If you are certain about your use case (server, workstation, or high-end virtualization) and your motherboard supports **2666 MHz ECC REG memory**, this is a **strong, reliable choice** from Samsung. However, if you are unsure about compatibility or need cost-effective alternatives, consider checking for **QVL-approved memory** from your motherboard manufacturer before purchasing.

For most **non-server** applications, a **non-ECC, unbuffered DDR4 module** (e.g., 2666 MHz CL16) would be a more economical and sufficient option.

Details:

It features error correction code ECC memory and is registered, making it suitable for enterprise networking server applications. With its reliable brand reputation and specific model details, this memory module is a valuable addition to any server setup. The product is a single Samsung 16GB DDR4 SDRAM server memory module with total capacity of. The memory module has a bus speed of PC4-21300 DDR4-2666 and is designed for high-performance computing in server environments.

part #: pc42666vre112ma0 prices

• $59.00-$169.20

specifications servermemor:

• brand: Samsung
• mpn: Pc4-2666v-re1-12-ma0
• model: 16gb 2rx8 Pc4-2666v-re1-12-ma0
• form factor: Rdimm
• type: Ddr4 Sdram
• total capacity: 16 Gb
• bus speed: Pc4-21300
• country of origin: China
• memory features: Ecc Memory, Registered

payments servermemor:

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

general servermemor:

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

offer servermemor:

• sold: 0
• started: March 6, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 3
• best offers: True

returns servermemor:

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

seller servermemor:

• rating: 99.8%
• # reviews: 18139
• city: Fremont, California

shipping servermemor:

• carrier: USPS
• service: USPS First Class
• class: Standard
• transit: 5-11 Days
• type: Fixed
• cost: $0.00

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