Samsung M321R8GA0EB2-CCPWF DDR5 6400MBPS Pc5-51200 288-pin RDIMM 64GB RAM

Samsung M321R8GA0EB2-CCPWF 64GB Memory

The Samsung M321R8GA0EB2-CCPWF is a highly reliable 64GB DDR5 SDRAM RDIMM designed for enterprise-grade servers and advanced computing environments. Offering 6400 Mbps speed, PC5-51200 bandwidth, and ECC Registered technology, this memory module ensures consistent performance, optimal multitasking, and enhanced data integrity for mission-critical workloads.

• Capacity: 64GB
• Form Factor: 288-Pin Registered DIMM
• Memory Technology: DDR5 SDRAM
• Module Configuration: 1 x 64GB
• Data Transfer Rate: 6400 Mbps (DDR5-6400 / PC5-51200)
• Voltage: 1.1V for efficient energy use
• Data Integrity: ECC (Error-Correcting Code)
• Signal Processing: Registered
• CAS Latency: CL52
• Rank Configuration: 2Rx4

Samsung 64GB DDR5 6400MT/s RDIMM Memory

Samsung M321R8GA0EB2-CCPWF 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-CCPWF 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: Reliability and Predictability

Registered M321R8GA0EB2-CCPWF 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.

Power Efficiency and Thermal Considerations

DDR5’s lower nominal voltage of 1.1V reduces power draw per module relative to some M321R8GA0EB2-CCPWF DDR4 variants, though higher frequencies and increased density can raise absolute power per DIMM. Samsung’s modules are manufactured with efficiency-minded designs and thermal profiles suitable for rack-mounted servers. Nevertheless, thermal management remains important: properly designed airflow, heat spreaders where applicable, and system-level thermal monitoring help maintain signal integrity and sustained performance under prolonged heavy workloads. For densely populated memory configurations, chassis design and fans must be evaluated to prevent thermal throttling and to preserve MTBF (mean time between failures).

Firmware

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.

Use Cases and Workload Suitability

The Samsung M321R8GA0EB2-CCPWF 64GB DDR5 RDIMMs excel in scenarios where memory capacity and bandwidth drive application scalability. Use cases include virtualization hosts running dozens of memory-heavy virtual machines, in-memory caching systems requiring large hot datasets, high-performance computing nodes processing large scientific datasets, AI inference servers that host large models in memory for low-latency inference, and analytics clusters executing complex queries on large in-memory tables. Financial services benefit from low-latency, high-throughput memory to expedite market data handling and risk analytics. Enterprises that consolidate workloads to fewer, larger servers will find the 64GB density an enabler for cost and space efficiency.

Compatibility

These M321R8GA0EB2-CCPWF RDIMMs target modern server platforms that support DDR5 Registered DIMMs and have BIOS/UEFI firmware certified for PC5-51200 profiles. Compatibility matrices commonly include leading enterprise CPUs and server chipsets from major vendors; systems intended to run these modules should be validated against the server vendor’s Qualified Vendor List (QVL) to ensure approved operating frequencies, ranks per channel, and total capacity per channel. Memory population rules, which dictate where DIMMs should be placed for optimal channel interleaving and bandwidth, must be followed to achieve the advertised performance levels. Systems that do not support DDR5 RDIMM or that expect UDIMMs will be incompatible.