Samsung M321R2GA3PB0-CWM 16GB DDR5 server memory module

Description

The Samsung M321R2GA3PB0-CWM is a 16GB DDR5 server memory module designed for platforms that support ECC Registered DDR5 RDIMM memory.

Operating at 5600 MT/s, the module provides high memory bandwidth for modern server processors. Its ECC capability helps detect and correct certain memory errors, while the registered-memory architecture is designed for reliable operation in server memory configurations.

The module uses a single-rank 1Rx8 organization, a 288-pin DDR5 DIMM form factor, and 1.1V operating voltage. It is specified as DDR5-5600 / PC5-44800R memory.

The exact Samsung part number is identified as 16GB DDR5-5600 ECC RDIMM in current technical listings.

Key Specifications

The exact module is documented as a 16GB, 1Rx8, DDR5-5600 ECC RDIMM with 288 pins and 1.1V operation.

16GB Memory Capacity

With 16GB capacity, the M321R2GA3PB0-CWM is suitable for memory expansion in compatible server platforms.

Multiple modules can be installed to increase total system memory, subject to the server’s maximum supported capacity, CPU memory channels, DIMM population rules, and platform-specific memory configuration.

Potential workloads include:

• Virtualization
• Enterprise applications
• Database services
• File and storage services
• Network infrastructure
• Edge computing
• Development environments
• Professional workstation applications

DDR5-5600 Performance

The module is rated at 5600 MT/s, corresponding to the DDR5-5600 / PC5-44800R performance class.

This provides high memory-transfer bandwidth for modern server processors.

Actual operating frequency may vary depending on:

• Server model
• CPU memory controller
• BIOS/firmware
• Number of installed DIMMs
• DIMM population
• Memory-channel configuration
• Server manufacturer’s supported memory configuration

A compatible server may automatically operate the memory at a lower supported speed.

ECC Error Correction

The M321R2GA3PB0-CWM uses ECC Registered memory.

ECC helps detect and correct certain memory errors, improving data integrity and system reliability in server environments.

This makes the module appropriate for:

• Enterprise servers
• Virtualization hosts
• Database servers
• Storage systems
• Data-center infrastructure
• Network servers
• Professional computing systems

Registered DIMM Architecture

The M321R2GA3PB0-CWM is a Registered DIMM (RDIMM).

RDIMM technology uses a register to buffer command and control signals, supporting reliable operation in server memory configurations.

RDIMM and UDIMM memory are different technologies and are not interchangeable.

The target server must explicitly support DDR5 ECC RDIMM memory.

Single-Rank 1Rx8 Organization

This Samsung module uses a single-rank 1Rx8 organization.

The rank configuration should be considered when installing multiple DIMMs because server manufacturers may specify particular memory population sequences.

288-Pin DDR5 DIMM

The M321R2GA3PB0-CWM uses a 288-pin DDR5 DIMM form factor.

Physical pin count alone does not guarantee compatibility. The target server must also support the correct:

• DDR5 generation
• ECC memory
• RDIMM architecture
• 16GB DIMM capacity
• 1Rx8 organization
• DDR5-5600 speed class
• Memory-channel configuration

Server & Professional Applications

The M321R2GA3PB0-CWM is designed for compatible professional computing environments.

Recommended applications include:

• Enterprise servers
• Data-center systems
• Virtualization servers
• Database servers
• Storage systems
• Network infrastructure
• Edge computing
• Cloud infrastructure
• Professional workstations
• Development environments

Technical compatibility references identify systems such as Dell PowerEdge R760, T560, and MX760c among platforms associated with this memory specification. Actual compatibility should always be confirmed against the server manufacturer’s current memory qualification list.

Memory Population & Configuration

For systems using multiple RDIMMs, follow the server manufacturer’s recommended DIMM installation sequence.

For consistent operation, matching:

• Capacity
• Speed
• Rank
• Memory type
• ECC configuration
• Manufacturer
• Part number

is recommended.

The server platform ultimately determines the supported memory speed and configuration.

Compatibility Considerations

Before purchasing or installing the M321R2GA3PB0-CWM, verify that the target system supports:

• DDR5 ECC RDIMM
• 16GB DIMMs
• DDR5-5600
• 1Rx8 memory organization
• 288-pin DDR5 DIMMs
• The required DIMM population configuration

Do not install this RDIMM in a system designed only for DDR5 UDIMM or SODIMM memory.

For enterprise servers, the manufacturer’s Qualified Vendor List (QVL) or memory compatibility guide should be used whenever available.

Key Features & Benefits

• 16GB memory capacity
• Samsung server memory
• DDR5 technology
• 5600 MT/s data rate
• ECC error correction
• Registered DIMM architecture
• Single-rank 1Rx8 organization
• 288-pin DDR5 DIMM
• 1.1V operating voltage
• PC5-44800R
• CL46
• Designed for compatible server platforms
• Suitable for enterprise and virtualization workloads
• Suitable for professional computing environments
• High-speed DDR5 memory technology

Important Compatibility Note

The Samsung M321R2GA3PB0-CWM is a 16GB DDR5 ECC RDIMM intended for compatible server platforms.

It should not be marketed as a standard consumer desktop DDR5 module.

RDIMM, UDIMM, and SODIMM memory technologies are different and generally cannot be substituted for one another.

Always verify the target server’s:

• Server model
• CPU generation
• Motherboard
• BIOS/firmware
• Maximum supported memory
• RDIMM support
• DIMM population rules
• Supported memory frequency
• Rank and organization requirements

before ordering.