M321R8GA0PB2-CCPWF Samsung 64GB 6400MBPS PC5-51200 Cl52 ECC Registered Memory

Samsung M321R8GA0PB2-CCPWF DDR5 RDIMM Memory

The Samsung M321R8GA0PB2-CCPWF DDR5 RDIMM memory module is engineered to support modern data centers, enterprise servers, and performance-driven computing platforms. Built on next-generation DDR5 SDRAM architecture, this module delivers substantial improvements in bandwidth, reliability, and power efficiency compared to earlier memory generations, making it suitable for virtualization, cloud workloads, database processing, and mission-critical applications.

Product Information

• Manufacturer: Samsung
• Part Number: M321R8GA0PB2-CCPWF
• Product type: 64GB DDR5 SDRAM RDIMM memory module

Technical Specifications

• Capacity: 64GB
• Speed: 6400MT/s (PC5-51200)
• Form Factor: ECC Registered DIMM (RDIMM)
• Rank: Dual Rank X4
• Voltage: 1.2V for enhanced power efficiency
• Advanced ECC for critical data integrity
• Samsung B-die DRAM architecture
• Designed for enterprise-class systems and high-performance computing

Enterprise-Level Memory Control Benefits

• Improved signal integrity across memory channels
• Greater scalability in multi-DIMM configurations
• Consistent performance under sustained workloads

Compact Shipping and Handling Profile

• Approximate shipping dimensions: 1.00 inch height × 6.75 inch depth
• Lightweight design at approximately 0.20 lb
• Protective packaging for enterprise distribution

Low-Voltage Operation

• 1.2V operating voltage
• Reduced power draw for data center environments
• Supports thermal efficiency in dense server racks

Designed for Modern Server Platforms

• Compatible with DDR5 RDIMM-enabled motherboards
• Ideal for virtualization, AI workloads, and databases
• Suitable for cloud infrastructure and enterprise IT environments

Samsung M321R8GA0PB2-CCPWF 64GB DDR5 Memory

The Samsung M321R8GA0PB2-CCPWF is a high-performance 64GB DDR5 Registered DIMM (RDIMM) memory module, designed for advanced server and workstation applications. Offering a blazing-fast 6400MT/s speed, this PC5-51200 memory module ensures efficient data processing, improved bandwidth, and superior stability. Engineered with ECC (Error Correction Code) and a dual-rank x4 configuration, it enhances data integrity and reliability, making it a robust solution for enterprise computing environments.

The DDR5 Revolution in Server Environments

The transition from DDR4 to DDR5 represents a paradigm shift in memory technology, particularly for servers. DDR5 isn't just an incremental speed bump; it's a fundamental redesign that addresses the bottlenecks of modern multi-core processors and data-intensive workloads.

Capacity: 64GB at 6400MB/s (PC5-51200)

With a substantial M321R8GA0PB2-CCPWF 64GB capacity per module, this RDIMM allows system builders to achieve high total memory configurations (often 512GB, 1TB, or more per server) with fewer slots, reducing power consumption and complexity. The 6400 Mega transfers per second (MT/s) speed, marketed as PC5-51200 (where PC5 denotes DDR5 and 51200 represents peak bandwidth in MB/s), provides a massive leap in bandwidth. This speed is essential for feeding data-hungry CPUs like Intel Xeon Scalable (Sapphire Rapids, Emerald Rapids) and upcoming AMD EPYC processors, minimizing bottlenecks in memory-sensitive applications.

ECC (Error-Correcting Code)

Beyond the on-die ECC, the module performs full ECC at the system level. It adds extra bits (e.g., 8 bits for every 64-bit word) to detect and, more importantly, correct single-bit errors on the fly. This prevents silent data corruption—a catastrophic risk in financial, scientific, and archival systems—and significantly enhances system uptime by correcting errors that would otherwise cause crashes.

Registered (Buffered) Design

The M321R8GA0PB2-CCPWF in RDIMM stands for Registered. A register (or buffer) is placed on the module between the memory controller and the DRAM chips. This buffer handles electrical load, reducing the strain on the memory controller. This allows servers to support much higher memory capacities (more DIMMs per channel) and more DRAM chips per module without degrading signal integrity. It is a trade-off that adds a tiny amount of latency (typically one clock cycle) for massive gains in stability and capacity scaling.

Thermal Management

While more efficient than DDR4, DDR5 modules running at 6400MT/s generate heat. Proper server airflow is essential. Some high-performance RDIMMs may feature thermal sensors (not typically on standard modules like this Samsung one) or be paired with passive heatsinks in certain OEM configurations. Ensuring consistent cooling across all DIMM slots prevents thermal throttling and maintains stability.

The Future-Proof Investment

Investing in DDR5 RDIMMs like the Samsung M321R8GA0PB2-CCPWF is a strategic decision for building or upgrading enterprise infrastructure. It delivers the necessary headroom for evolving software demands, more powerful CPUs, and increasingly data-heavy workloads. The combination of exceptional bandwidth, massive per-module capacity, and unwavering data integrity through advanced ECC makes this category of memory not just a component purchase, but a foundational investment in computational reliability and performance for the next generation of server technology.

Enterprise-Grade DDR5 RDIMM Memory Solutions

The Samsung M321R8GA0PB2-CCPWF DDR5 RDIMM memory module is engineered to support modern data centers, enterprise servers, and performance-driven computing platforms. Built on next-generation DDR5 SDRAM architecture, this module delivers substantial improvements in bandwidth, reliability, and power efficiency compared to earlier memory generations, making it suitable for virtualization, cloud workloads, database processing, and mission-critical applications.

Reliability

Integrated ECC functionality continuously monitors and corrects single-bit memory errors, ensuring data integrity during critical operations. This feature is essential for enterprise servers, financial systems, and data-sensitive applications where accuracy and uptime are mandatory.

288-Pin RDIMM Configuration

Designed in a standard 288-pin RDIMM form factor, this Samsung memory module is compatible with modern server motherboards that support DDR5 registered memory. The physical layout ensures secure installation and reliable connectivity within enterprise chassis.

Designed for Modern Server Platforms

The Samsung M321R8GA0PB2-CCPWF memory module is intended for systems that explicitly support DDR5 RDIMM with ECC and registered signaling. It is commonly deployed in enterprise servers, high-performance computing clusters, and professional-grade workstations.

Compatibility

Operating at a standard 1.2V for DDR5, this module offers higher performance at a lower voltage than DDR4 (typically 1.2V vs. 1.35V for DDR4-3200), contributing to better energy efficiency in the data center. The 288-pin design is specific to DDR5 and is physically keyed differently from DDR4's 288-pin layout to prevent incorrect installation. As an RDIMM, it is exclusively compatible with server and workstation platforms that support Registered memory with ECC (e.g., Intel Xeon, AMD EPYC/Thread ripper Pro platforms). It will not work in consumer desktop motherboards designed for unbuffered UDIMMs.