SAMSUNG M321R8GA0EB2-CCP Ecc Rdimm Memory 64GB DDR5-6400MHZ PC5-51200 CL52

( Brand: Samsung ), ( Manufacturer Part Number: M321R8GA0EB2-CCP ), ( Total Capacity: 64 Gb ), ( Memory Features: Ecc Memory, Registered ), ( Form Factor: Rdimm ), ( Type: Ddr5 Sdram ), ( Product Type: Memory ), ( Cas Latency: Cl52 ), ( Number Of Pins: 288 ), ( Bus Speed: Pc5-51200 ), ( Country Of Origin: United States )

Review SAMSUNG Ddr5-6400mhz Ecc Reg Rdimm Memory

The **Samsung M321R8GA0EB2-CCP 64GB DDR5-6400MHz PC5-51200 CL52 ECC Registered RDIMM** memory module represents the pinnacle of high-performance server and workstation memory, engineered to meet the demanding requirements of enterprise-grade computing environments. This module is part of Samsung s elite **M393A2K40BB0-CTD** DDR5 DRAM lineup, a series renowned for its reliability, speed, and advanced error-correcting capabilities. With a robust **64GB capacity** (comprising two 32GB DIMMs), this kit delivers unparalleled memory bandwidth and efficiency, making it an ideal choice for data-intensive applications such as virtualization, high-performance computing (HPC), AI/ML workloads, and large-scale database management systems. The **DDR5-6400MHz** clock speed ensures lightning-fast data transfer rates, with a **PC5-51200** rating indicating a peak bandwidth of 51.2 GB/s per module, significantly enhancing system responsiveness and throughput. The **CL52 CAS latency** while higher than consumer-grade modules is optimized for server stability and error resilience, particularly in environments where data integrity is paramount.

Designed with **ECC (Error-Correcting Code) technology**, this memory module actively detects and corrects single-bit errors on the fly, safeguarding critical data from corruption during high-speed operations. This feature is indispensable for mission-critical applications where even minor data inconsistencies could lead to catastrophic failures, such as financial transaction processing, scientific simulations, or cloud-based infrastructure. The **Registered (RDIMM) architecture** further enhances stability by buffering address and command signals, reducing signal integrity issues on densely populated server motherboards with multiple memory slots. This design minimizes latency spikes and ensures consistent performance across large memory configurations, making it a cornerstone for multi-socket server systems.

Constructed with Samsung s proprietary **16Gb DDR5 DRAM chips**, this module leverages advanced manufacturing processes to achieve both high density and reliability. The **CTD (Chip-To-DIMM) packaging** ensures optimal signal integrity and power efficiency, while the **low-power design** (with support for DDR5 s power-saving features) helps reduce operational costs in data centers. The **288-pin DIMM form factor** guarantees compatibility with a wide range of enterprise-grade motherboards, including those from Dell PowerEdge, HP ProLiant, Lenovo ThinkSystem, and other leading server manufacturers. Whether deployed in a single-socket workstation or a multi-node cluster, this memory module excels in environments where raw performance, data integrity, and scalability are non-negotiable.

For IT administrators and system architects, the **M321R8GA0EB2-CCP** offers a seamless integration with modern server platforms, particularly those supporting **DDR5 memory standards**. Its **64GB capacity** provides ample headroom for memory-hungry applications, while the **ECC and Registered specifications** ensure long-term reliability in demanding workloads. Whether deployed in a virtualized environment running VMware ESXi, Microsoft Hyper-V, or bare-metal HPC clusters, this memory module delivers the speed, stability, and error resilience required to handle the most taxing computational challenges. Samsung s commitment to quality and performance makes this module a trusted choice for organizations prioritizing both immediate productivity and future-proofing their infrastructure.

The **Samsung M321R8GA0EB2-CCP (64GB, DDR5-6400MHz, PC5-51200, CL52, ECC, Registered RDIMM)** is a high-end memory module designed for enterprise and high-performance computing environments. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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The module offers **64GB of capacity**, which is ideal for servers, workstations, or high-end desktops running memory-intensive applications (e.g., virtualization, databases, AI/ML workloads, or professional content creation). The **DDR5-6400MHz** speed provides faster data transfer rates compared to DDR4, improving system responsiveness and throughput.

ECC memory is critical for data integrity in enterprise environments. It detects and corrects single-bit errors, reducing the risk of crashes or data corruption in critical applications like databases, financial systems, or scientific computing. This makes it far more reliable than non-ECC memory for professional use.

Registered RDIMMs use a buffer chip to manage data flow between the memory module and the memory controller. This reduces the load on the CPU and chipset, improving stability and scalability in multi-socket systems. It is a standard choice for servers and high-end workstations where memory channels are heavily utilized.

This module is designed for **server-grade motherboards** (e.g., Intel Xeon, AMD EPYC, or high-end desktop platforms like Intel Core i9 or AMD Ryzen Threadripper with compatible chipsets). It supports **DIMM slots in enterprise-grade systems**, making it suitable for data centers, cloud infrastructure, or professional workstations.

DDR5 technology offers improvements over DDR4, including higher bandwidth, lower power consumption per cycle, and support for larger memory capacities. Investing in DDR5 now ensures compatibility with upcoming hardware upgrades.

Samsung is a reputable manufacturer known for high-quality memory modules. The **CL52 latency** (though relatively high) is optimized for stability in enterprise environments where error correction is prioritized over raw speed. The module is built to withstand prolonged use in demanding conditions.

With 64GB per module, you can easily scale up to **256GB or more** in a multi-channel system (e.g., 4x modules in a dual-channel setup). This is invaluable for virtualization, where multiple VMs require significant RAM.

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The **CAS Latency of 52** is extremely high compared to consumer-grade DDR5 memory (which often ranges from CL30 to CL40). This means the memory module will have slower response times, potentially limiting performance in latency-sensitive applications (e.g., gaming, real-time rendering, or low-latency trading). However, in enterprise workloads where ECC and stability are paramount, this trade-off is often acceptable.

This is **not a consumer-grade module**. The cost per GB is significantly higher than standard DDR5 memory (e.g., 3200MHz or 4800MHz CL40). For example, a 64GB DDR5-4800 CL40 module might cost around **$100 $150**, whereas this Samsung module could cost **$300 $500 or more**, depending on the market and retailer. This makes it impractical for casual users or budget-conscious builds.

While this module works in high-end desktops (e.g., Intel X299, AMD WRX80/900), it is **overkill for most consumer applications**. Gamers, content creators, or general users would benefit more from **lower-latency, higher-frequency DDR5 modules** (e.g., 6000MHz or 6400MHz CL30 CL36) at a fraction of the cost.

DDR5 modules generally consume more power than DDR4, and higher-capacity modules like this one will draw more current. While the per-cycle efficiency is better, the overall power draw in a multi-module setup can be significant, requiring robust power supplies.

Not all motherboards support **64GB RDIMMs**, especially in consumer-grade platforms. You ll need a **server-grade or high-end workstation motherboard** with sufficient memory slots and power delivery to handle this module. Checking the **QVL (Qualified Vendor List)** of your motherboard is essential to avoid compatibility issues.

Unless you are running **multi-threaded applications, virtualization, or data-intensive tasks**, the performance gains from this module may not justify the cost. For example, a 32GB or 64GB DDR5 kit with lower latency would suffice for most professional workstations (e.g., video editing, 3D rendering, or software development).

Enterprise-grade memory modules are less commonly stocked in retail stores compared to consumer memory. You may need to purchase from **specialized vendors, server suppliers, or directly from Samsung s authorized distributors**, which can add to the complexity of procurement.

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The **Samsung M321R8GA0EB2 (64GB DDR5-6400MHz ECC Registered RDIMM)** is an **excellent choice for enterprise environments, servers, or high-end workstations** where **data integrity, scalability, and reliability** are critical. Its ECC protection, registered design, and high capacity make it ideal for virtualization, databases, AI workloads, or any application requiring fault tolerance.

However, for **consumer use, gaming, or general professional workstations**, this module is **overpriced and underutilized**. The high latency (CL52) and cost make it impractical unless you are specifically targeting enterprise-grade performance. In such cases, **lower-latency, higher-frequency DDR5 modules** (e.g., 6000MHz or 6400MHz CL30 CL40) would offer better performance per dollar for most applications.

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- You are building or upgrading a **server, workstation for virtualization, or data center workload**.

- You require **ECC memory for data integrity** (e.g., databases, financial systems, scientific computing).

- Your platform **supports Registered RDIMMs** (check QVL for compatibility).

- You need **high memory capacity (64GB per module)** for multi-socket systems.

- You are a **gamer, content creator, or general user** looking for high-performance memory at a reasonable price.

- Your workload is **latency-sensitive** (e.g., gaming, real-time rendering), as lower-latency DDR5 modules will perform better.

- You are on a **tight budget**, as consumer-grade DDR5 memory offers similar speed at a fraction of the cost.

- Your motherboard **does not support Registered RDIMMs** (check documentation).

- For **enterprise/server use:** Look for other **ECC Registered RDIMMs** (e.g., Corsair Vengeance, Kingston ECC, or Micron modules) with better latency (e.g., CL40) if available.

- For **high-end desktops/workstations:** Opt for **DDR5-6000MHz or 6400MHz CL30 CL40 non-ECC modules** (e.g., Corsair Dominator Platinum, G.Skill Trident Z5 Neo) for better performance in professional workloads.

- For **budget-conscious builds:** Stick with **DDR4-3200MHz or DDR5-4800MHz** if your platform supports it, as the performance difference may not justify the upgrade.

Details:

Part Number: M321R8GA0EB2-CCP. Manufacturer: Samsung. Error Correction: ECC Registered. Capacity: 64GB.

Box or APO/FPO addresses. Product Overview: M321R8GA0EB2-CCP is a Samsung 64GB DDR5-6400 ECC Registered DIMM RDIMM server memory module in 288-pin low-profile form factor, featuring 2Rx4 dual-rank organization with 40x 4Gx4 FBGA DRAM chips for high-band width enterprise applications like AI, virtualization, and big data processing on modern Intel/AMD platforms. Product: Server Memory. Specifications: Memory Type: DDR5-SDRAM.

Form Factor: RDIMM. Condition: Used.

part #: m321r8ga0eb2 prices

• $425.00-$1999.00

specifications servermemor:

• brand: Samsung
• mpn: M321r8ga0eb2-ccp
• total capacity: 64 Gb
• memory features: Ecc Memory, Registered
• form factor: Rdimm
• type: Ddr5 Sdram
• product type: Memory
• cas latency: Cl52
• number of pins: 288
• bus speed: Pc5-51200
• country of origin: United States

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• carrier: FedEx
• class: Economy
• type: Calculated
• service: FedEx Ground Economy
• cost: $0.00
• transit: 3-9 Days

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• policy: Returns Accepted
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offer servermemor:

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• quantity: 4
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• options: Ship-to-home
• started: March 23, 2026
• availability: In Stock

general servermemor:

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

seller servermemor:

• rating: 97.5%
• city: Pittsburgh, Pennsylvania
• # reviews: 50

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