SAMSUNG M393A2K40DB2-CWECQ Server Ecc Memory 1RX4 PC4-3200A-RC2-12-MH1

( Brand: Samsung ), ( Manufacturer Part Number: M393A2K40DB2-CWECQ ), ( Part Type: Memory Server )

Review SAMSUNG 16gb 1rx4 Server Ecc Memory

The **Samsung M393A2K40DB2-CWEQ (1Rx4, PC4-3200A-RC2-12-MH1) Server ECC Memory** is a high-performance, enterprise-grade DDR4 memory module engineered to deliver exceptional reliability, speed, and efficiency for demanding server workloads. Part of Samsung s renowned **M393 series**, this **128GB (4x32GB) RDIMM (Registered DIMM)** module is designed to meet the rigorous requirements of modern data centers, cloud computing environments, and high-availability servers. Built with **low-power, high-density DDR4 technology**, it operates at a robust **3200MHz (PC4-3200) clock speed**, ensuring blazing-fast data transfer rates while maintaining optimal power efficiency critical for reducing operational costs in large-scale deployments.

This module incorporates **Samsung s advanced 12nm-class process technology**, which enhances signal integrity, reduces latency, and improves overall system stability. The **ECC (Error-Correcting Code) functionality** provides real-time error detection and correction, safeguarding mission-critical data against silent data corruption a feature indispensable for financial systems, databases, and virtualized environments where uptime and data integrity are non-negotiable. The **RC2 (Registered Cache 2) architecture** further optimizes memory performance by buffering commands and data, reducing latency spikes and improving throughput in multi-socket server configurations.

Constructed with **industry-leading reliability standards**, the M393A2K40DB2-CWEQ features **12-rank configuration (1Rx4)** for balanced performance and scalability, making it ideal for systems requiring high memory bandwidth without excessive power consumption. The **12-MH1 (12-rank, 128-bit wide) design** ensures seamless compatibility with a wide range of server platforms, including those from Dell, HP, Lenovo, and other major vendors, while adhering to strict **JEDEC standards** for interoperability. Additionally, its **low-power operation** (supporting both standard and low-voltage modes) helps extend server lifespan and reduces cooling demands, contributing to a more sustainable and cost-effective infrastructure.

Perfect for **high-performance computing (HPC), virtualization, and large-scale database applications**, this memory module is built to handle the most intensive workloads with precision. Whether deployed in **cloud data centers, AI/ML training environments, or enterprise-grade servers**, the Samsung M393A2K40DB2-CWEQ delivers a perfect blend of speed, endurance, and reliability, ensuring peak performance while minimizing downtime. Its robust construction, combined with Samsung s reputation for innovation, makes it a trusted choice for IT administrators seeking a balance of cutting-edge technology and enterprise-grade durability.

### **Pros and Cons of Buying Samsung M393A2K40DB2-CWEQ (1Rx4 PC4-3200A-RC2-12-MH1) Server ECC Memory**

1. **High Performance and Speed** This DDR4 memory module operates at **3200 MHz (PC4-3200)**, which is suitable for modern server workloads requiring fast data processing. The **RC2 (Registered CAS Latency 2)** configuration helps stabilize memory performance in high-channel-count systems.

2. **ECC (Error-Correcting Code) Support** ECC memory is essential for servers, as it detects and corrects single-bit errors, reducing data corruption risks in critical applications like databases, virtualization, and financial systems.

3. **Low Power Consumption (1.2V)** The **1.2V** voltage rating helps reduce power draw compared to higher-voltage modules, contributing to energy efficiency in data centers.

4. **Reliability and Stability** Samsung is a reputable manufacturer known for producing high-quality server-grade memory with robust build quality. The **MH1** variant is designed for enterprise use, ensuring long-term stability.

5. **Compatibility with Modern Servers** This module is designed for **1Rx4 (single-rank, four DIMMs per channel)** configurations, which are common in mid-range and high-end server motherboards. It supports **DDR4-3200**, making it suitable for Intel Xeon and AMD EPYC-based systems.

6. **Registered (Buffered) Design** The **RC2** (Registered CAS Latency 2) configuration helps reduce signal integrity issues in multi-socket servers, improving overall system stability.

7. **Cost-Effective for High-End Use** While not the cheapest option, it strikes a balance between performance and price for enterprise workloads where reliability is critical.

---

1. **Single-Rank (1Rx4) Limitation** Being a **single-rank** module, it may not fully utilize the bandwidth potential of multi-channel memory architectures in some server configurations. For maximum throughput, multi-rank (2Rx4 or 4Rx4) modules are often preferred.

2. **Not the Fastest Option for Extreme Workloads** While **3200 MHz** is fast, some high-performance servers (e.g., those using Intel Xeon Scalable or AMD EPYC 7003) may benefit from **3600 MHz or 4000 MHz** memory for extreme workloads like AI/ML or high-frequency trading.

3. **Potential Overkill for Budget Servers** If the server is not heavily memory-bound (e.g., a low-end file server or basic virtualization host), this module may be more expensive than necessary. A **2400 MHz or 2933 MHz** ECC module could suffice in such cases.

4. **Limited Availability of Matching Kits** Since this is a **single DIMM**, purchasing in bulk may require buying multiple units, which could increase costs compared to pre-bundled memory kits.

5. **Compatibility Check Required** Not all servers support **DDR4-3200 RC2** memory. Users must verify that their motherboard and CPU (e.g., Intel Xeon Gold/Platinum or AMD EPYC 7002/7003) officially support this speed and configuration.

---

The **Samsung M393A2K40DB2-CWEQ (1Rx4 PC4-3200A-RC2-12-MH1)** is an excellent choice for **enterprise servers** requiring **high reliability, ECC protection, and moderate-to-high memory speeds**. It is well-suited for:

- **Virtualization hosts** (VMware, Hyper-V)

- **Database servers** (SQL, Oracle)

- **Mid-range to high-end compute workloads** (web servers, ERP systems)

- **Systems where memory stability is critical**

However, it may be **overkill for low-end or lightly loaded servers**, and users should consider **faster speeds (3600 MHz) or multi-rank modules** if their workload demands maximum throughput. Always ensure **motherboard and CPU compatibility** before purchase.

- **Buy if:** You need a **reliable, ECC-protected, 3200 MHz** memory solution for a **server workload** where stability and moderate speed are priorities.

- Your server requires **higher memory speeds (3600 MHz)** for extreme performance.

- You need **multi-rank (2Rx4/4Rx4)** modules for better bandwidth.

- Your budget allows for **pre-bundled memory kits** (often cheaper per GB).

- The server is **not heavily memory-intensive** (e.g., a basic NAS or low-traffic web server).

For most **business-critical servers**, this module is a **solid, high-quality choice** that balances performance and reliability. Always verify compatibility with your specific hardware before purchasing.

Details:

Model: M393A2K40DB2-CWECQ.: PC4-3200AA-RC2-12-MH1 Server Memory Module. Condition: Used. Capacity: 16GB.

Comes in non-original packaging. Buyer pays for all shipping costs. Specifications. These memory modules have minor markings from normal use and show no major defects that would affect their functionality.

Error Correction: ECC Registered. This item is guaranteed to be as described. Data Transfer Rate: 3200MHz. Manufacturer: Samsung.

Notes: These memory modules have been tested and verified, were carefully inspected with a magnifier for flaws or missing components.

part #: m393a2k40db2 prices

• $172.79-$299.99

specifications servermemor:

• brand: Samsung
• mpn: M393a2k40db2-cwecq
• part type: Memory Server

shipping servermemor:

• cost: $19.80
• class: Standard, Expedited, One-day
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air, USPS Priority Mail
• transit: 2-5 Days
• type: Calculated
• carrier: UPS, USPS

offer servermemor:

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

general servermemor:

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

payments servermemor:

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

returns servermemor:

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

seller servermemor:

• # reviews: 90933
• city: Leander, Texas
• rating: 99.9%

Samsung M393A2K40DB2 Is Similar To:

• 0.09744922496769814 Samsung Ecc Reg Ram (24.1% 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 (38.5% 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 (27% 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 (22.6% 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 (29.5% 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 (31.1% 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 (24.3% 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 (27.6% 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 (27.9% 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 (34.6% 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...(October 16th, 2018)
• 0.9516050138760368 Samsung Registered Ecc Memory (38.4% 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)