Samsung M321R8GA0BB0-CQK 64GB DDR5-4800 ECC RDIMM Server Memory

The Samsung M321R8GA0BB0-CQK is a 64GB DDR5-4800 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center systems, and professional computing platforms. This high-density Samsung server memory module combines 64GB capacity, DDR5-4800 performance, ECC error correction, and registered-memory architecture to provide reliable and efficient memory performance for demanding enterprise workloads.

With a rated transfer speed of 4800 MT/s, the module provides a PC5-38400 memory bandwidth classification. Its 2Rx4 dual-rank architecture and 1.1V operating voltage make it suitable for modern server platforms designed to support DDR5 ECC RDIMMs.

64GB High-Density Server Memory

The 64GB capacity allows compatible servers to achieve substantial system-memory configurations while using fewer DIMM slots than lower-capacity modules. This makes the M321R8GA0BB0-CQK particularly useful for memory-intensive enterprise environments where both capacity and bandwidth are important.

Typical applications include:

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

DDR5-4800 Performance

The M321R8GA0BB0-CQK operates at DDR5-4800 / 4800 MT/s, providing a theoretical bandwidth classification of PC5-38400. The module is also specified with CL40 latency.

DDR5 technology provides higher memory bandwidth and improved power efficiency compared with previous-generation DDR4 memory. The actual operating speed can vary depending on the server processor, BIOS configuration, DIMM population, and platform-specific memory limitations.

ECC Registered RDIMM Architecture

The module uses ECC (Error-Correcting Code) technology, which is designed to detect and correct certain types of memory errors. ECC is especially important in enterprise and data-center systems where data integrity and system stability are critical.

The module is also Registered (RDIMM) memory. Registered memory incorporates register circuitry to manage memory signals and is designed for compatible server platforms. It should not be confused with standard desktop UDIMM or laptop SO-DIMM memory.

2Rx4 Dual-Rank Organization

The Samsung M321R8GA0BB0-CQK uses a 2Rx4 dual-rank organization. Detailed specifications identify the module as 8Gx72, using 4Gx4 DRAM organization with 40 DRAM devices.

This memory organization is important when checking compatibility and planning DIMM population in enterprise servers.

288-Pin DDR5 DIMM

The M321R8GA0BB0-CQK uses a 288-pin DIMM form factor and operates at 1.1V. These specifications are standard characteristics of this Samsung DDR5 server-memory module.

Enterprise Applications

The combination of 64GB capacity, DDR5-4800 speed, ECC protection, and RDIMM architecture makes the M321R8GA0BB0-CQK well suited to demanding enterprise environments.

It can provide additional memory capacity for:

Virtualization:
Supports memory-intensive virtual machine environments and multi-VM server configurations.

Databases:
Provides additional system memory for database applications handling large datasets and concurrent workloads.

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

AI & Data Analytics:
High DDR5 memory bandwidth can benefit data-intensive workloads that require frequent access to large datasets.

Enterprise Applications:
Designed for reliable operation in business-critical server environments.

Compatibility

Before installing the M321R8GA0BB0-CQK, verify that the target server supports:

• DDR5 ECC RDIMM
• 64GB DIMMs
• DDR5-4800
• 2Rx4 memory organization
• 288-pin DDR5 DIMMs
• The required DIMM population configuration
• The server’s maximum supported memory capacity
• The appropriate processor generation and BIOS

ASUS server compatibility documentation, for example, lists Samsung M321R8GA0BB0-CQK as a 64GB DDR5-4800 RDIMM, 288-pin module for compatible server platforms.

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Technical Specifications