Samsung M321R8GA0EB2-CCPEF 64GB DDR5-6400 ECC RDIMM Server Memory

The Samsung M321R8GA0EB2-CCPEF is a 64GB DDR5-6400 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center systems, and high-performance computing platforms. It is part of Samsung’s high-density DDR5 server-memory family, combining 64GB capacity, 6400 MT/s data-transfer speed, ECC error correction, and registered-memory architecture for demanding professional workloads. The exact M321R8GA0EB2-CCPEF part number is listed by WPG Americas as a Samsung memory module.

The M321R8GA0EB2 family is documented as 64GB DDR5-6400 ECC RDIMM, with 2Rx4 dual-rank organization, 288-pin form factor, 1.1V operation, and PC5-51200 bandwidth. Server compatibility lists also identify the M321R8GA0EB2 family as a 64GB, DDR5, 6400 MT/s, 2R×4, ECC RDIMM module.

High-Speed DDR5-6400 Performance

Operating at 6400 MT/s, the module provides high memory bandwidth for modern server processors. Its DDR5-6400 specification corresponds to PC5-51200, making it suitable for workloads that require substantial memory throughput.

DDR5-6400 server memory can help support demanding applications such as:

• Enterprise virtualization
• Cloud computing
• Database servers
• AI and machine-learning infrastructure
• Data analytics
• High-performance computing
• Enterprise applications
• Virtual desktop infrastructure
• Large-scale application hosting
• Memory-intensive workloads

Actual operating speed may depend on the server processor, BIOS configuration, DIMM population, and the maximum memory speed supported by the platform.

64GB High-Density Server Memory

With 64GB capacity per module, the M321R8GA0EB2-CCPEF allows compatible servers to achieve higher total memory capacity while using fewer DIMM slots than lower-density modules.

This makes it particularly useful for servers running multiple virtual machines, large databases, enterprise applications, and other workloads that require substantial system memory.

ECC Registered DIMM Architecture

The M321R8GA0EB2-CCPEF is designed as ECC Registered DIMM (RDIMM) memory.

ECC (Error-Correcting Code) technology is designed to detect and correct certain types of memory errors, helping maintain data integrity and system stability in enterprise environments.

The registered architecture improves signal management and scalability in server memory configurations. RDIMMs are intended for compatible server platforms and should not be confused with standard desktop UDIMMs or laptop SO-DIMMs.

Server compatibility documentation confirms Samsung M321R8GA0EB2-family modules as ECC Registered DIMMs.

2Rx4 Dual-Rank Organization

The module uses a 2Rx4 dual-rank organization. Detailed specifications for the M321R8GA0EB2 family identify an 8Gx72 organization with 40 × 4Gx4 FBGA DRAM devices.

This architecture is an important consideration when determining compatibility and planning DIMM population within a server.

1.1V DDR5 Technology

The module operates at 1.1V, consistent with the DDR5 server-memory specification. DDR5 technology provides higher memory bandwidth and improved power efficiency compared with previous-generation DDR4 memory.

Enterprise and Data-Center Applications

The combination of 64GB capacity, DDR5-6400 speed, ECC protection, and RDIMM architecture makes the M321R8GA0EB2-CCPEF suitable for demanding enterprise environments.

Virtualization:
Provides substantial memory capacity for running multiple virtual machines and applications.

Database Workloads:
High memory capacity and bandwidth can support large databases and concurrent transactions.

Cloud Infrastructure:
Suitable for compatible cloud and data-center servers requiring scalable ECC memory.

AI & Data Analytics:
High DDR5 bandwidth can benefit data-intensive workloads that process large datasets.

Enterprise Applications:
ECC RDIMM architecture is designed for professional environments where memory reliability and stability are important.

Server Compatibility

Before installing the M321R8GA0EB2-CCPEF, verify that the target server supports:

• DDR5 ECC RDIMM
• 64GB DIMMs
• DDR5-6400
• 2Rx4 organization
• 288-pin DDR5 DIMMs
• 1.1V memory
• The required DIMM population configuration
• The server’s maximum supported memory capacity
• Compatible processor generation and BIOS

For example, current server compatibility documentation lists Samsung M321R8GA0EB2-family modules as 64GB DDR5-6400 ECC RDIMM, 2R×4 memory for compatible server platforms.

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Technical Specifications