SAMSUNG M393A4K40DB3-CWEBQ Ecc Server Memory PC4-3200-RB2-12-DC1 32GB 2RX4 PC4-3200AA-RB2-12-DC1

( Brand: Samsung ), ( Manufacturer Part Number: M393A4K40DB3-CWEBQ ), ( Model: PC4-3200-RB2-12-DC1 ), ( Total Capacity: 32 Gb ), ( Memory Features: Ecc Memory, Registered ), ( Form Factor: Rdimm ), ( Type: Ddr4 Sdram ), ( Unit Type: Unit ), ( Manufacturer Warranty: Lifetime ), ( Number Of Pins: 288 ), ( Bus Speed: Pc4-23400 )

Review SAMSUNG 2rx4 Registered Ecc Server Memory

The **Samsung M393A4K40DB3-CWEBQ 32GB DDR4 Registered ECC Server Memory** is a high-performance, enterprise-grade memory module designed to deliver exceptional reliability, speed, and efficiency in demanding server environments. Part of Samsung s premium **DDR4 RDIMM (Registered Dual In-Line Memory Module)** lineup, this 32GB module is engineered to meet the rigorous demands of data centers, cloud computing, and high-performance computing (HPC) workloads. Built with **PC4-3200 (DDR4-2400) speed**, it operates at a clock speed of 2400 MHz, ensuring rapid data transfer rates of **19.2 GB/s per module**, which translates to seamless multitasking, faster application processing, and reduced latency in memory-intensive operations. The **2Rx4 configuration** (two ranks, four banks) optimizes memory bandwidth and throughput, making it ideal for servers requiring balanced performance between speed and capacity.

This module incorporates **ECC (Error-Correcting Code) technology**, a critical feature for server applications where data integrity is non-negotiable. ECC memory detects and corrects single-bit errors in real time, significantly reducing the risk of data corruption, crashes, or downtime qualities essential for mission-critical systems like virtualization, databases, and financial transaction processing. Additionally, the **Registered (Buffered) design** mitigates signal integrity issues by buffering commands from the memory controller, which helps stabilize performance in large memory configurations (up to 12 DIMMs per channel in supported systems) and minimizes bus contention. This makes it a robust choice for servers with high memory channel counts, such as those based on Intel Xeon or AMD EPYC processors.

Constructed with **low-power, high-density Samsung DRAM chips**, this memory module adheres to strict industrial standards for thermal efficiency and reliability. The **CL17 (CAS Latency) timing** strikes a balance between speed and stability, ensuring smooth operation in both single- and multi-socket server architectures. The **DIMM form factor** is compatible with a wide range of enterprise servers, including those from Dell, HP, Lenovo, and other major vendors, provided they support DDR4-2400 RDIMM configurations. The **CWEBQ variant** is specifically optimized for **DDR4-2400 speed**, making it a cost-effective yet high-performance alternative to higher-speed modules where bandwidth requirements are moderate but reliability is paramount.

Beyond its technical specifications, this memory module is built to endure the harshest conditions found in data centers, featuring **enhanced thermal management** and **durable soldered contacts** to prevent wear and tear over prolonged use. The **unbuffered (non-registered) alternative is not an option here**, as the registered design is specifically tailored for server-grade stability in multi-processor environments. Whether deployed in a **2U rack server, blade system, or high-density compute node**, this module ensures consistent performance under heavy workloads, making it a cornerstone for businesses prioritizing uptime, scalability, and data protection. For organizations seeking a blend of speed, capacity, and enterprise-grade resilience, the Samsung M393A4K40DB3-CWEBQ 32GB DDR4 RDIMM is an exemplary choice.

**Pros and Cons of buying a Samsung M393A4K40DB3-CWEBQ (32GB, 2Rx4, PC4-3200, ECC, Server Memory)**

### **Pros**

1. **High Performance and Speed**

The module operates at **PC4-3200 (DDR4-2400)** speeds, providing faster data transfer rates compared to slower memory kits. This is beneficial for workloads requiring high throughput, such as database operations, virtualization, or high-performance computing.

2. **ECC (Error-Correcting Code) Capability**

ECC memory is essential for servers, as it detects and corrects single-bit errors, reducing data corruption risks. This is critical in enterprise environments where reliability is paramount.

3. **Registered (Buffered) Design**

The **2Rx4 (2-rank, 4x8GB)** configuration with a registered buffer helps stabilize memory performance in multi-socket or high-channel-count servers by reducing signal interference and improving stability.

4. **Low Latency (RB2-12)**

The **CL12 (CAS Latency 12)** timing is relatively low for server memory, which can enhance performance in latency-sensitive applications.

5. **Reliability and Durability**

Samsung is a reputable manufacturer known for producing high-quality server-grade memory with robust build quality. The module is designed for **24/7 operation**, making it suitable for mission-critical environments.

6. **Compatibility with Enterprise Servers**

This memory is designed for **DDR4 server platforms**, ensuring compatibility with a wide range of enterprise-grade servers, including those from Dell, HP, Lenovo, and others.

7. **Cost-Effective for High-Capacity Needs**

While not the fastest available, it offers a **good balance between speed and price** for mid-range server workloads, making it a cost-effective choice for businesses needing 32GB DIMMs.

---

### **Cons**

1. **Not the Fastest DDR4 Option**

While **DDR4-2400 (PC4-3200)** is decent, newer server platforms support **DDR4-3200 (PC4-25600) or DDR5**, which offer higher bandwidth and lower latency. If your server supports faster speeds, this module may not fully utilize available memory slots.

2. **Limited Upgrade Path**

If future workloads require **higher memory capacity or speed**, you may need to replace the entire memory kit rather than simply adding more modules.

3. **Potential Overkill for Small Workloads**

If your server is running **lightweight tasks (e.g., small virtual machines, basic file servers)**, this high-end ECC memory may be **overkill**, leading to unnecessary costs.

4. **Compatibility Risks with Non-Enterprise Hardware**

While designed for servers, some **consumer-grade motherboards or workstations** may not fully support ECC or registered memory, leading to compatibility issues.

5. **Higher Cost Compared to Non-ECC Memory**

ECC and registered memory is **more expensive** than standard DDR4 modules. If your use case doesn t strictly require ECC, you might save money with non-ECC alternatives.

6. **Power Consumption**

Server-grade memory, including this module, consumes **more power** than consumer memory, which could impact energy costs in large-scale deployments.

---

### **Conclusion**

The **Samsung M393A4K40DB3-CWEBQ (32GB, DDR4-2400, ECC, Registered)** is an **excellent choice for enterprise servers** where **reliability, stability, and moderate performance** are critical. It is well-suited for:

- **Database servers**

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

- **High-availability workloads**

- **Servers requiring ECC protection**

However, if your server **supports faster DDR4 speeds (e.g., DDR4-3200 or DDR5)**, this module may not be the best long-term investment. Additionally, if your workload is **lightweight and doesn t require ECC**, a cheaper non-ECC kit might suffice.

### **Recommendation**

- You need **ECC protection** for data integrity.

- Your server **supports DDR4-2400** and you want **stable, high-capacity memory**.

- You are running **workloads that benefit from registered memory** (e.g., multi-socket servers).

- You prioritize **reliability over absolute speed**.

- Your server **supports DDR4-3200 or DDR5** opt for a faster module.

- Your workload is **light and doesn t require ECC** a cheaper non-ECC kit may be sufficient.

- You need **higher capacity** check for **64GB or 128GB DIMMs** if available.

- You are on a **tight budget** compare with other ECC manufacturers (e.g., Kingston, Corsair, Crucial).

For most **enterprise, virtualization, or database-heavy servers**, this Samsung module is a **solid, reliable choice**. However, always verify **server compatibility** before purchasing to ensure optimal performance.

Details:

Note: this memory is for servers only, it not compatible with regular desktops. All modules are working and were tested under stress before listing.

part #: m393a4k40db3 prices

• $274.99-$420.00

specifications servermemor:

• brand: Samsung
• mpn: M393a4k40db3-cwebq
• model: Pc4-3200-rb2-12-dc1
• total capacity: 32 Gb
• memory features: Ecc Memory, Registered
• form factor: Rdimm
• type: Ddr4 Sdram
• unit type: Unit
• manufacturer warranty: Lifetime
• number of pins: 288
• bus speed: Pc4-23400

general servermemor:

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

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seller servermemor:

• # reviews: 315
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offer servermemor:

• started: April 17, 2026
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• options: Ship-to-home
• availability: In Stock
• quantity: 4

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