M321R8GA0BB0-CQKMS Samsung 64GB RAM 2RX4 DDR5 4800 MHz CL40 PC5-38400 ECC

Capacity and Module Layout

• Total memory capacity: 64GB
• Single-module design for flexible expansion
• Dual-rank configuration for optimized throughput
• Ideal for memory-intensive server tasks

Benefits of Registered DDR5 Memory

• Improved signal stability under heavy loads
• Support for higher memory densities
• Reduced strain on the memory controller
• Consistent performance in multi-DIMM configurations

ECC Advantages in Enterprise Systems

• Automatic detection and correction of memory errors
• Enhanced data integrity for critical applications
• Lower risk of system instability
• Essential for servers, virtualization, and databases

Samsung M321R8GA0BB0-CQKMS 64GB DDR5 PC5-38400 Memory

This specific memory module is a meticulously crafted component built to Samsung's M321R8GA0BB0-CQKMS renowned standards for quality and performance. Let's break down its key specifications and what they mean for your server infrastructure. In the realm of enterprise computing, server memory is not merely a component; it is the critical workspace that determines the speed, capacity, and reliability of data processing. The transition to DDR5 SDRAM (Synchronous Dynamic Random-Access Memory) represents a monumental leap from previous generations, offering transformative improvements in bandwidth, power efficiency, and error management. The Samsung M321R8GA0BB0-CQKMS 64GB DDR5 kit is a premier example of this technology, engineered specifically for the relentless demands of servers powering cloud infrastructure, hyperscale data centers, big data analytics, and high-performance computing (HPC) clusters.

The DDR5 Advantage

Building upon DDR4, the DDR5 architecture in the Samsung M321R8GA0BB0-CQKMS brings transformative improvements: With a data rate of 4800 Mega transfers per second (MT/s), labeled as PC5-38400 (where 38400 MB/s is the theoretical peak bandwidth per channel), DDR5 starts at speeds where high-end DDR4 topped out. This translates directly to higher available bandwidth for CPU cores, reducing bottlenecks in data-intensive workloads. Each DDR5 DIMM is organized into two independent 32-bit sub-channels. While a server RDIMM still presents a single 72-bit channel (64 data + 8 ECC) to the memory controller, internal management can improve efficiency and reduce latency for certain access patterns compared to DDR4's single 64-bit channel.

Registered ECC DDR5 SDRAM Explained

The Samsung M321R8GA0BB0-CQKMS integrates two foundational server memory technologies: Registration (Buffering) and Error-Correcting Code (ECC), built upon the latest DDR5 standard. This combination is non-negotiable for mission-critical systems. A Registered DIMM (RDIMM) incorporates a register, or buffer, on the module itself. This register sits between the system's memory controller and the DRAM chips. Its primary function is to buffer the command and address signals sent to the memory chips.

RDIMM vs. Load Reduced DIMM (LRDIMM)

LRDIMMs take buffering a step further by also buffering the data signals, not just command/address. This reduces the electrical load even more than an RDIMM, enabling the highest possible capacities and population densities (e.g., 3DPC). However, this added buffer introduces slightly higher latency and cost. The Samsung 64GB RDIMM offers an excellent balance of capacity, performance, and cost for the majority of 1DPC and 2DPC server deployments.

The Samsung M321R8GA0BB0-CQKMS DDR5 RAM module is designed to provide users with an impressive capacity of 64GB. This substantial amount of memory allows for efficient multitasking and enhances the overall performance of your computer system. With a capacity of 64GB, this DDR5 RAM module enables users to handle demanding tasks effortlessly. Whether you are a gamer, content creator, or professional in need of a high-performance system, this RAM capacity ensures smooth and lag-free operations. The increased memory allows for seamless multitasking, which is especially beneficial for those who frequently work with resource-intensive applications or run multiple virtual machines simultaneously.

Speed: 4800 MHz

The Samsung M321R8GA0BB0-CQKMS DDR5 RAM module boasts an impressive speed of 4800 MHz. This high frequency ensures lightning-fast data transfer rates, resulting in improved system responsiveness and overall performance. The 4800 MHz speed of this DDR5 RAM module enables quick data processing, making it ideal for tasks that require rapid access to information. Whether you are working on complex calculations, rendering high-resolution graphics, or running memory-intensive applications, the increased speed ensures that your system can handle these tasks efficiently.

PC5-38400

The Samsung M321R8GA0BB0-CQKMS DDR5 RAM module boasts a PC rating of PC5-38400. This rating provides users with valuable information about the RAM's performance and compatibility with their computer system. The PC5-38400 rating ensures that the. By investing in this RAM module, you are future-proofing your system and ensuring that it can handle upcoming software updates and advancements without any compatibility issues. This allows you to extend the lifespan of your computer system and avoid the need for frequent upgrades.

Firmware

Samsung M321R8GA0BB0-CQKMS works closely with leading server OEMs (Dell, HPE, Lenovo, Super micro) and CPU manufacturers to ensure their memory firmware and microcode are optimized for broad platform compatibility and performance. This deep integration at the firmware level helps unlock the full potential of the DDR5 specification in real-world deployments. The RDIMM form factor offers flexibility and expandability options for your system. You can easily upgrade your memory capacity by adding additional RDIMM modules without the need for complex configurations or hardware modifications. This allows you to adapt your system to changing requirements and future-proof your investment.

Stability

The ECC support of the Samsung M321R8GA0BB0-CQKMS DDR5 RAM module contributes to enhanced system stability. By automatically detecting and correcting errors, this RAM module provides a reliable computing environment, minimizing the chances of system crashes or unexpected shutdowns. Users can work with peace of mind, knowing that their critical data is protected and their system is stable.

Reliability

Samsung's rigorous testing and validation processes ensure that each module, including the M321R8GA0BB0-CQKMS, meets extreme standards for performance and longevity. This results in lower failure rates, higher mean time between failures (MTBF), and predictable performance—critical metrics for enterprise IT procurement.

Compatibility

4800MT/s is the foundational JEDEC standard speed for first-generation DDR5 platforms. This makes the Samsung M321R8GA0BB0-CQKMS a universally compatible, plug-and-play solution for a wide array of server and workstation platforms based on Intel Xeon Scalable Processors (Sapphire Rapids, Emerald Rapids) and AMD EPYC 9004 "Genoa" series processors. It provides the optimal balance of high performance, excellent stability, and broad compatibility without requiring BIOS or firmware adjustments for overclocked speeds.