Samsung 64GB DDR5 6400MBPS PC5-51200 2rx4 ECC M321R8GA0EB2-CCP Registered RDIMM Cl52 SDRAM 288-Pin RAM

Samsung M321R8GA0EB2-CCP 64GB DDR5 Memory

The Samsung M321R8GA0EB2-CCP 64GB DDR5 SDRAM RDIMM is an advanced server-grade memory solution engineered to meet the demands of modern data centers, enterprise computing, and performance-driven IT infrastructures. Delivering 6400 MT/s bus speed, ECC registered reliability, and DDR5 next-generation efficiency, this memory module ensures uncompromising stability, seamless multitasking, and rapid data throughput for mission-critical workloads.

General Information

• Manufacturer: Samsung
• Part Number: M321R8GA0EB2-CCP
• Product Category: DDR5 Registered DIMM for Servers

Technical Specifications

• Capacity: 64GB
• Memory Type: DDR5 SDRAM
• Speed: 6400MT/s, PC5-51200
• Form Factor: 288-pin Registered DIMM (RDIMM)
• Rank: 2Rx4
• CAS Latency: CL52
• Error Correction: ECC Registered
• Intended Use: Enterprise servers, high-performance systems, and mission-critical workloads

Performance Advantages

• Delivers improved multitasking and parallel processing capabilities.
• Optimized for databases, AI, machine learning, and HPC systems.
• Ensures consistent performance under heavy server workloads.

Targeted Workloads

• AI and deep learning model computations
• Enterprise cloud computing infrastructure
• Scientific and engineering simulations
• Financial services and transaction processing
• Virtualized environments and container platforms

Key Security Features

• On-die ECC for internal error correction
• Protection against random bit-flips
• Consistency across multi-threaded workloads
• Support for encryption-ready server environments

Samsung M321R8GA0EB2-CCP 64GB DDR5 Memory

Samsung M321R8GA0EB2-CCP 64GB DDR5 6400MT/s PC5-51200 2Rx4 ECC Registered 1.1V CL52 SDRAM 288-pin RDIMM memory modules represent a high-performance, enterprise-grade class of server memory engineered for modern data center workloads, virtualization, AI inference nodes, high-frequency trading platforms, and mission-critical enterprise servers. These modules combine the generational improvements of DDR5 with Samsung’s manufacturing rigor, delivering higher throughput, improved power efficiency, and advanced error correction that together raise reliability and predictable performance for sustained, heavy workloads.

DDR5 Architecture Advantages

DDR5 brings multiple architecture-level improvements over prior generations that directly benefit this category. The modules leverage improved bank group structures and doubled burst lengths, enabling more efficient data transfer patterns. On-die ECC, integrated power management, and internal voltage regulation features contribute to more resilient signaling and better power distribution at the DIMM level. The move to higher prefetch and transfer rates reduces latency of large-block transfers in real-world server workloads, improving application-level throughput for database transactions, large-scale in-memory caches, and analytics pipelines.

Capacity: 64GB

High-density M321R8GA0EB2-CCP 64GB RDIMMs allow servers to scale memory capacity without occupying all memory channels with lower-capacity DIMMs. This density is particularly valuable for multi-socket platforms and for systems where memory footprint per VM or per container is large. Cloud providers and enterprises deploying memory-hungry applications such as in-memory databases, large-scale caching layers, and data processing nodes will prefer 64GB modules because they strike a balance between capacity, cost-per-gigabyte, and DIMM slot utilization. By enabling higher total memory per server, these RDIMMs support higher consolidation ratios and reduce the need for extra server nodes solely to satisfy memory requirements.

ECC Registered

Registered ECC RDIMMs in this category add two critical elements for enterprise deployment: registration (buffered command/address signals) and ECC (error-correcting code). Registered buffering reduces electrical loading on memory controllers, permitting more DIMMs per channel and improving signal integrity at high speeds. ECC provides automated detection and correction of single-bit memory errors and detection of multi-bit errors, preventing silent data corruption. Together, these traits translate to higher uptime, safer data handling for long-running computations, and conformance to regulatory or industry standards that mandate data integrity for financial, scientific, and healthcare workloads.

288-Pin RDIMM Structure

The 288-pin RDIMM form factor ensures compatibility with modern server platforms that support DDR5 memory. Its standardized design allows for easy installation and seamless integration into enterprise systems.

ECC Registered RDIMMs in Enterprise Stability

In server environments, data integrity and system stability are non-negotiable. This is where Error-Correcting Code (ECC) and Registered (or Buffered) DIMMs become essential. ECC memory includes extra bits to detect and correct single-bit data corruption on the fly, preventing silent data errors that could lead to crashes or corrupted results. The "Registered" aspect, indicated by the "R" in RDIMM, incorporates a register (or buffer) on the module that acts as a traffic controller for addressing signals. This reduces the electrical load on the server's memory controller, allowing for the support of significantly more memory modules per channel—a prerequisite for populating massive memory capacities in multi-socket servers. The combination of ECC and Registered technology, as seen in this Samsung module, is the industry standard for mission-critical applications where uptime and accuracy are paramount.

To exploit peak performance and maintain stability, firmware updates and the latest BIOS microcode are recommended. Many server vendors release memory compatibility and optimization patches that enable memory scaling to higher transfer rates and correct for platform-specific quirks. Memory training routines during POST (Power-On Self-Test) help identify stable timing combinations. Advanced systems may provide options for manual tuning of XMP-like profiles, though enterprises typically rely on vendor-validated configurations for stability and supportability. When deploying in clustered environments, consistency of DIMM firmware and part numbers across nodes simplifies troubleshooting and performance predictability.