Samsung M321R4GA3BB0-CQKVG 32GB DDR5-4800 ECC RDIMM Server Memory

The Samsung M321R4GA3BB0-CQKVG is a 32GB DDR5-4800 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center systems, and professional computing platforms. The exact part number is widely identified as a 32GB DDR5-4800, PC5-38400, ECC Registered RDIMM with 2Rx8 dual-rank architecture.

With a rated data transfer speed of 4800 MT/s, this Samsung server memory module provides high memory bandwidth for modern enterprise platforms. Its DDR5 architecture makes it suitable for demanding workloads including server virtualization, cloud computing, database applications, enterprise software, data analytics, and other memory-intensive environments.

The module provides 32GB of memory capacity in a single DIMM, allowing compatible servers to expand system memory while retaining additional DIMM slots for future upgrades. Multiple modules can be installed according to the server manufacturer’s memory population guidelines to achieve larger total memory configurations.

ECC Registered Server Memory

The M321R4GA3BB0-CQKVG uses ECC (Error-Correcting Code) technology, which is designed to detect and correct certain types of memory errors. ECC memory is particularly valuable in enterprise environments where data integrity, system stability, and reliable operation are important.

It is also a Registered DIMM (RDIMM). Registered memory uses register circuitry between the memory controller and DRAM devices and is designed for compatible server platforms. This module is therefore intended for enterprise/server systems rather than standard desktop UDIMM or laptop SO-DIMM platforms.

DDR5-4800 Performance

The module operates at DDR5-4800 / 4800 MT/s, corresponding to PC5-38400. Exact-MPN product listings specify CL40 CAS latency and 1.1V operating voltage.

The actual operating speed can depend on the server processor, BIOS configuration, number of installed DIMMs, DIMM population, and platform architecture. For example, Lenovo SPEC benchmark records show the exact M321R4GA3BB0-CQKVG operating as 32GB, 2-rank DDR5-4800 memory in ThinkSystem platforms.

2Rx8 Dual-Rank Architecture

The M321R4GA3BB0-CQKVG uses a 2Rx8 dual-rank organization. This is an important specification for server compatibility and memory population planning. Multiple independent listings identify the exact MPN as 2Rx8.

32GB High-Density Server Memory

With 32GB per DIMM, this Samsung module provides a practical balance between memory capacity and system expansion. It can be used in compatible servers requiring additional RAM for demanding workloads while leaving available DIMM slots for future upgrades.

Typical applications include:

• Enterprise servers
• Data-center infrastructure
• Server virtualization
• Cloud computing
• Database servers
• Application servers
• Web servers
• Enterprise software
• Data analytics
• Virtual desktop infrastructure
• High-performance computing
• Professional workloads
• Business-critical applications

The exact Samsung MPN has been used in enterprise systems including Lenovo ThinkSystem SR630 V3, SR650 V3, and SD650 V3 configurations, demonstrating its use in modern server environments.

Enterprise Server Compatibility

The Samsung M321R4GA3BB0-CQKVG is specifically an ECC Registered DDR5 RDIMM. Customers should verify their server’s memory requirements before purchasing.

Check for:

• DDR5 RDIMM support
• 32GB DIMM support
• 2Rx8 configuration
• DDR5-4800 support
• Processor compatibility
• Maximum supported system memory
• DIMM population requirements
• BIOS/firmware compatibility

The memory may operate at a lower frequency if required by the host server or processor configuration.

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Technical Specifications