HMCG94AEBRA124N Hynix 64GB (1x64gb) 4800Mt/s Pc5-38400 CL40 ECC DDR5 SDram 288-pin Memory Module.

Overview of Hynix HMCG94AEBRA124N 64GB DDR5 PC5-38400

The Hynix HMCG94AEBRA124N 64GB 4800MT/s PC5-38400 CL40 ECC DDR5 SDRAM 288-Pin Memory Module represents the pinnacle of next-generation server memory technology, engineered for enterprise computing environments, high-performance data centers, AI workloads, and virtualization-heavy applications. With a memory capacity of 64GB per module, this DDR5 RDIMM module enables high-density installations, empowering servers to handle multi-terabyte memory pools necessary for intensive computational tasks, large-scale databases, and analytics platforms. By combining high-speed data transfer, advanced ECC capabilities, and dual-rank design, this module delivers enterprise-grade reliability, scalability, and performance.

DDR5 Technology and Architectural Advancements

DDR5 technology introduces several enhancements over DDR4, including higher bandwidth, improved power efficiency, and advanced error detection mechanisms. The HMCG94AEBRA124N module is designed to leverage these improvements fully, incorporating dual 32-bit subchannels per module that allow for increased memory parallelism and optimized command handling. This subchannel architecture enables simultaneous execution of multiple memory access requests, reducing latency and improving overall system throughput. Furthermore, DDR5 modules feature on-die ECC, providing early-stage error detection and correction within each DRAM chip, enhancing data integrity before it even reaches the system-level ECC implemented at the module.

High Bandwidth Performance and Data Transfer

Operating at PC5-38400 specifications, the Hynix HMCG94AEBRA124N module achieves a data transfer rate of 4800MT/s, delivering substantial bandwidth improvements over previous-generation DDR4 modules. The increased burst length and prefetch capabilities of DDR5 enhance effective memory throughput, enabling multi-core processors to fully utilize system memory without bottlenecks. This high-speed memory is particularly suited for data-intensive operations, including AI model training, GPU-accelerated computing, real-time analytics, and virtualization. The enhanced bandwidth ensures that memory-intensive tasks execute efficiently, delivering consistent performance under peak workloads.

Dual-Rank 2Rx4 Configuration and Latency Considerations

The HMCG94AEBRA124N module features a dual-rank (2Rx4) architecture, which allows independent access to multiple banks within each rank. By alternating access between ranks, servers can maintain high memory throughput and minimize idle cycles. While DDR5 modules have slightly higher base latency (CL40) compared to some DDR4 counterparts, the benefits of dual-rank access, increased parallelism, and higher data rates more than compensate for the latency increase. In memory-heavy applications such as in-memory databases, high-performance computing simulations, and virtualized environments, the dual-rank design ensures scalable performance and optimal utilization of memory channels.

ECC Functionality for Enterprise Reliability

ECC (Error-Correcting Code) is a fundamental feature of the Hynix HMCG94AEBRA124N module, providing single-bit error correction and multi-bit error detection at the module level. This functionality is critical for enterprise workloads, data centers, and cloud computing, where even a single memory error can disrupt operations and compromise data integrity. Combined with DDR5 on-die ECC, this module provides a dual layer of protection, enhancing reliability and reducing the risk of system crashes or data corruption. ECC memory is indispensable for industries that require continuous uptime and data security, including finance, healthcare, scientific research, and government applications.

Module Construction and Heat Dissipation

The Hynix HMCG94AEBRA124N module is engineered with high-quality PCB materials and optimized IC placement to ensure even heat distribution. Thermal-aware routing, efficient chip layout, and robust module construction prevent hotspots and enhance long-term operational stability. In dual-rank configurations, heat is distributed across multiple DRAM banks, minimizing the risk of thermal-induced throttling or performance degradation. These design considerations ensure reliable operation under sustained high workloads and in fully populated server memory channels.

Enterprise Applications

This 64GB DDR5 ECC RDIMM is designed to address the demanding requirements of modern enterprise and high-performance computing environments. Its combination of speed, capacity, reliability, and advanced features makes it suitable for virtualization-heavy servers, AI and machine learning clusters, in-memory database platforms, high-performance analytics, and cloud computing infrastructures. By offering robust memory bandwidth and advanced error correction, this module ensures optimal performance for critical workloads without compromising stability or uptime.

Cloud Computing

Virtualization environments demand large memory pools and reliable ECC functionality to efficiently support multiple virtual machines (VMs) on a single server. The 64GB module capacity and dual-rank design allow servers to host dense VM deployments, minimizing memory contention and maintaining high responsiveness. Hypervisors such as VMware ESXi, Microsoft Hyper-V, and KVM can leverage these modules for improved consolidation ratios, higher throughput, and consistent VM performance across enterprise workloads.

Machine Learning Workloads

AI and ML workloads benefit from the high memory capacity and bandwidth of the HMCG94AEBRA124N module, enabling rapid access to large datasets for training and inference. GPU-accelerated clusters can leverage dual-rank DDR5 modules for parallel memory access, improving overall compute efficiency. These features are essential for deep learning models, neural network training, real-time data processing, and large-scale AI simulations.

In-Memory Databases and Real-Time Analytics

In-memory databases such as SAP HANA, Redis, or Apache Ignite rely on high-capacity, low-latency memory to store entire datasets in RAM. The HMCG94AEBRA124N module’s 64GB capacity per module, ECC protection, and high-speed DDR5 architecture ensure stable performance for read/write intensive operations. Organizations can achieve faster query response times, real-time analytics, and high-performance transactional processing while maintaining data integrity and operational reliability.

Server Integration and Performance

The HMCG94AEBRA124N module is fully compatible with 288-pin DDR5 RDIMM server slots, ensuring straightforward installation in modern server architectures. Its dual-rank configuration and ECC capabilities enable servers to achieve high memory density without compromising system stability. DDR5 improvements, including increased bank groups, improved refresh management, and enhanced prefetching, allow this module to deliver superior performance in multi-socket server configurations. System designers can leverage these features to optimize memory channel utilization, maximize throughput, and reduce latency across demanding workloads.

Concurrent Workload Handling

Dual-rank DDR5 modules facilitate efficient multitasking, allowing servers to manage multiple memory-intensive operations simultaneously. This capability is particularly valuable in containerized environments, microservices architectures, and multi-tenant cloud deployments, where memory contention can impact performance. By enhancing parallel access to memory banks and leveraging subchannel architecture, the HMCG94AEBRA124N ensures consistent performance across concurrent applications.

Scalability and Future-Proofing

The Hynix HMCG94AEBRA124N module provides future-proof memory solutions for enterprise environments, supporting large memory deployments and scaling with increasing CPU core counts, GPU requirements, and AI workloads. High-density installations with multiple modules allow servers to achieve multi-terabyte RAM configurations, enabling organizations to meet growing computational demands. Its advanced features, including ECC protection, dual-rank architecture, and power-efficient design, ensure consistent performance, reliability, and stability as workloads evolve over time.

Data Integrity

Data integrity is paramount in sectors such as finance, healthcare, and government, where even minor memory errors can have significant consequences. The HMCG94AEBRA124N’s ECC capability, combined with DDR5 on-die error correction, provides a dual layer of protection, reducing the likelihood of data corruption. Enterprises can maintain compliance with data retention, audit, and regulatory requirements while leveraging high-performance memory for critical applications.

Memory Deployments

With 64GB capacity per module, the Hynix HMCG94AEBRA124N supports high-density server memory installations, facilitating multi-terabyte memory pools for virtualization, AI, and real-time analytics. These high-capacity modules enable optimized memory utilization, allowing enterprises to run more workloads per server, reduce hardware costs, and achieve better overall system efficiency.

Reliability and Longevity

Hynix DDR5 modules are engineered for long-term stability, featuring high-quality components, optimized PCB design, and rigorous testing protocols. The dual-rank 2Rx4 architecture ensures heat is distributed evenly, reducing the risk of thermal-related failures. Coupled with ECC functionality, this memory module ensures enterprise-grade reliability and sustained performance over its operational life, minimizing downtime and maintenance requirements.