Description

The Samsung M321R8GA0PB0-CWM is a high-capacity 64GB DDR5 server memory module designed for systems supporting ECC Registered DDR5 RDIMM memory.

Operating at 5600 MT/s, the module provides high memory bandwidth for modern enterprise computing platforms. Its ECC capability helps detect and correct certain memory errors, while the registered architecture buffers command and control signals for improved signal integrity in high-density server memory configurations.

The module uses a dual-rank 2Rx4 organization and a 288-pin DIMM form factor. It operates at 1.10V and is specified as DDR5-5600 / PC5-44800 memory.

This module is intended for servers and compatible professional computing platforms, rather than standard desktop systems.

Key Specifications

The exact part number is listed by multiple technical memory distributors as a 64GB DDR5-5600 ECC Registered RDIMM with 2Rx4 organization.

64GB High-Capacity Memory

With 64GB of capacity in a single DIMM, the M321R8GA0PB0-CWM allows compatible servers to expand system memory while using fewer physical DIMM slots than lower-capacity modules.

This makes it suitable for memory-intensive workloads such as:

• Server virtualization
• Database systems
• Cloud infrastructure
• Enterprise applications
• Data analytics
• High-performance computing
• Storage servers
• Professional workstation workloads

Actual maximum memory capacity depends on the server platform, processor generation, motherboard, BIOS/firmware, and DIMM population configuration.

DDR5-5600 Performance

The module is rated for DDR5-5600 / 5600 MT/s, providing high memory-transfer performance for modern server processors.

The 5600 MT/s rating represents the module’s specified data-transfer rate. Actual operating speed may be lower depending on the installed CPU, server platform, BIOS, DIMM population, and the manufacturer’s supported memory configuration.

ECC Error Correction

The M321R8GA0PB0-CWM uses ECC memory, an important feature for enterprise and server environments.

ECC helps detect and correct certain memory errors, improving data integrity and reducing the likelihood of memory-related system instability.

It is particularly suitable for:

• Mission-critical servers
• Virtualization hosts
• Database servers
• Enterprise applications
• Data-center infrastructure
• Storage platforms
• Scientific and engineering workloads

Registered DIMM Architecture

This Samsung module is an ECC Registered DIMM (RDIMM).

Registered memory uses a register to buffer command and control signals, helping maintain signal integrity in systems with large numbers of memory modules.

RDIMM is not interchangeable with standard DDR5 UDIMM or SODIMM memory.

The target server must specifically support DDR5 ECC RDIMM memory.

Dual-Rank 2Rx4 Organization

The M321R8GA0PB0-CWM uses a 2Rx4 dual-rank organization.

The rank and organization should be considered when installing multiple DIMMs because server manufacturers may specify particular memory population rules.

288-Pin DDR5 DIMM

The M321R8GA0PB0-CWM uses a 288-pin DDR5 DIMM form factor.

Compatibility should not be determined by the pin count alone. The target platform must also support:

• DDR5
• ECC
• Registered DIMM
• 64GB DIMM capacity
• 2Rx4 organization
• Supported memory frequency
• Correct CPU and motherboard memory architecture

Server Applications

The Samsung M321R8GA0PB0-CWM is designed for compatible server and professional computing environments.

Recommended applications include:

• Enterprise servers
• Data-center infrastructure
• Virtualization hosts
• Database servers
• Cloud computing
• Storage servers
• Network infrastructure
• High-performance computing
• Engineering workstations
• Professional computing systems

Technical listings identify the exact M321R8GA0PB0-CWM as server-oriented 64GB DDR5-5600 ECC RDIMM memory.

Memory Population & Configuration

For systems using multiple DIMMs, memory should be installed according to the server manufacturer’s recommended population sequence.

For best compatibility and performance, consider matching:

• Memory capacity
• Memory type
• Speed
• Rank
• Organization
• ECC configuration
• Manufacturer/part number

The server may automatically operate memory at a lower supported frequency depending on the processor, DIMM count, memory-channel configuration, and platform limitations.

Compatibility Considerations

Before purchasing, verify that the target server supports:

• DDR5 ECC RDIMM
• 64GB DIMMs
• DDR5-5600
• 2Rx4 memory
• 288-pin DDR5 DIMMs
• The required memory population configuration

Do not install this module in a system designed exclusively for DDR5 UDIMM or SODIMM memory.

For enterprise servers, the server manufacturer’s Qualified Vendor List (QVL), memory compatibility guide, or platform service documentation should be used to confirm exact compatibility.

Key Features & Benefits

• 64GB high-capacity memory module
• Samsung enterprise server memory
• DDR5 technology
• 5600 MT/s data rate
• ECC error correction
• Registered DIMM architecture
• Dual-rank 2Rx4 organization
• 288-pin DDR5 DIMM
• 1.10V operating voltage
• PC5-44800 / PC5-44800R
• CL46
• Designed for server environments
• Suitable for virtualization and enterprise workloads
• Suitable for high-density memory configurations
• High-capacity single-DIMM design

Important Compatibility Note

The Samsung M321R8GA0PB0-CWM is a 64GB DDR5 ECC RDIMM, not a standard consumer desktop memory module.

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

Always verify the target server’s:

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

before installation.