The Samsung M321R4GA3EB2 is a 32GB DDR5-6400 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center platforms, and professional computing environments. Samsung’s module specifications identify the M321R4GA3EB2 family as a 32GB DDR5-6400 server memory module with 2Rx8 organization, operating at 1.1V.
With a rated data-transfer speed of 6400 MT/s, this Samsung DDR5 RDIMM provides high memory bandwidth for modern server processors and demanding workloads. The module is well suited for server virtualization, cloud computing, databases, enterprise applications, data analytics, high-performance computing, and other memory-intensive workloads.
High-Speed DDR5-6400 Performance
The M321R4GA3EB2 is rated at DDR5-6400, providing a theoretical bandwidth classification of approximately PC5-51200. Its high-speed DDR5 architecture is designed for modern server platforms where memory throughput is important.
Samsung’s product information identifies the M321R4GA3EB2 family as DDR5, Server, 32GB, 6400 Mbps, 1.1V, and 2Rx8.
The actual operating frequency may depend on the server processor, BIOS configuration, number of installed DIMMs, DIMM population rules, and platform limitations.
ECC Registered DIMM
The M321R4GA3EB2 is an ECC Registered DIMM (RDIMM). ECC memory is designed to detect and correct certain memory errors, helping improve data integrity and system stability in enterprise environments.
Registered memory is specifically designed for compatible server platforms and should not be confused with standard desktop UDIMM or laptop SO-DIMM memory.
Current server compatibility documentation lists the M321R4GA3EB2-CCPWC as a 32GB DDR5 6400 MT/s, 2R*8, ECC RDIMM module.
32GB Capacity
With 32GB of memory capacity in a single DIMM, the M321R4GA3EB2 provides a practical balance of capacity and performance for enterprise servers. Multiple modules can be installed in compatible systems according to the manufacturer’s DIMM population guidelines to achieve larger total memory configurations.
It can be used for:
- Enterprise servers
- Data-center systems
- Server virtualization
- Cloud computing
- Database servers
- Application servers
- Web servers
- Data analytics
- Enterprise software
- Virtual desktop infrastructure
- High-performance computing
- AI and machine-learning infrastructure
- Memory-intensive workloads
2Rx8 Dual-Rank Architecture
The module uses a 2Rx8 dual-rank organization, an important specification for server compatibility and memory population planning. Samsung’s own module information identifies the M321R4GA3EB2 family as 2R x 8, while server manufacturer compatibility lists confirm the same architecture for the 32GB version.
Enterprise Server Compatibility
The M321R4GA3EB2 family is validated in modern server platforms. For example, current MSI server compatibility documentation lists the Samsung M321R4GA3EB2-CCPWC as a 32GB DDR5-6400 ECC RDIMM 2R*8 module for systems based on modern Intel and AMD server processors.
Before installation, customers should verify:
- Server model
- Processor generation
- DDR5 RDIMM support
- 32GB DIMM support
- 2Rx8 configuration
- DDR5-6400 support
- Maximum supported memory capacity
- DIMM population requirements
- BIOS/firmware compatibility
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Samsung |
| Manufacturer Part Number | M321R4GA3EB2 |
| Capacity | 32GB |
| Memory Generation | DDR5 |
| Memory Type | ECC Registered DIMM |
| Module Type | RDIMM |
| Speed | 6400 MT/s |
| Memory Standard | DDR5-6400 |
| Bandwidth | PC5-51200 |
| Rank | 2Rx8 / Dual Rank |
| ECC | Yes |
| Registered | Yes |
| Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | DIMM |
| Application | Enterprise Server / Data Center |
| Condition | Refurbished |
| Warranty | 1 Year |
| Availability | In Stock |
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