HMCT04MGBRC546N Hynix 128GB DDR5 5600MHz PC5-44800 Memory.

Hynix HMCT04MGBRC546N 128GB PC5-44800 Memory

Accelerate enterprise computing with the SK hynix HMCT04MGBRC546N, a high-capacity DDR5 module designed for ultimate server memory density and advanced error correction.

General Information

• Brand: SK hynix
• Part Number: HMCT04MGBRC546N
• Component Type: DDR5 ECC Registered RDIMM

Technical Specifications

• Module Capacity: 128 Gigabytes (GB)
• Memory Technology: DDR5 SDRAM
• Data Transfer Speed: 5600 MT/s (PC5-44800)
• CAS Latency: CL46
• Module Organization: 2Rx4 (Dual Rank)
• Operating Voltage: 1.1V
• Error Correction: ECC with EC8 (x8 Chipkill) - Provides industry-leading protection against data corruption from multi-bit errors.
• Module Type: Registered (RDIMM)
• Physical Interface: 288-pin RDIMM
• Profile: Low-Profile Design - Engineered for high-density server deployments where component clearance is critical.

Physical Dimensions and Weight

• Shipping Dimensions (H x D): 1.00" x 6.75"
• Approximate Shipping Weight: 0.20 lb

Hynix HMCT04MGBRC546N  PC5-44800 Memory Overview

The Hynix HMCT04MGBRC546N 128GB DDR5 5600MHz ECC Registered RDIMM memory module belongs to the high-capacity enterprise DDR5 server memory category, engineered to support modern data center infrastructures that demand exceptional performance, scalability, and reliability. This category focuses on registered DDR5 memory solutions optimized for multi-socket servers, virtualization hosts, cloud computing platforms, and mission-critical enterprise applications. By combining next-generation DDR5 architecture with enterprise-class error correction and registered signal buffering, this memory module category addresses the evolving requirements of high-density and high-bandwidth server environments.DDR5 RDIMM memory modules represent a substantial advancement over previous DDR4 generations by delivering higher transfer rates, improved power efficiency, and increased memory density per module. The Hynix HMCT04MGBRC546N exemplifies these improvements with its 5600MHz operating speed, PC5-44800 bandwidth rating, and 128GB capacity. This category is specifically designed for servers that require consistent performance under sustained workloads, stable operation in fully populated DIMM configurations, and long-term reliability across continuous operation cycles.

128GB High-Density Memory Design for Modern Workloads

The 128GB capacity places this memory module within the high-density server memory subcategory, which is essential for contemporary workloads that rely on large in-memory datasets. Virtualization platforms benefit directly from high-capacity RDIMMs, as they allow more virtual machines to run concurrently with sufficient memory allocation for each instance. This reduces memory contention and improves overall system responsiveness, particularly in environments hosting mixed workloads with varying memory demands.High-density memory is also crucial for enterprise databases and in-memory computing platforms. Applications that process large transactional datasets or perform real-time analytics can keep more data resident in RAM, minimizing access to slower storage tiers. This leads to faster query execution, reduced latency, and improved throughput for critical business applications. The 128GB capacity of the Hynix HMCT04MGBRC546N allows organizations to scale memory resources efficiently while maintaining a compact physical footprint within server chassis.

DDR5 5600MHz Speed and PC5-44800 Throughput

Operating at 5600MHz, this DDR5 RDIMM belongs to the high-frequency server memory category, delivering significantly increased bandwidth compared to earlier DDR standards. The PC5-44800 designation indicates a theoretical bandwidth of up to 44.8GB per second per module, enabling rapid data movement between the processor and memory. This level of throughput is particularly beneficial for multi-core and many-core processors that require fast and consistent memory access to avoid performance bottlenecks.High-speed DDR5 memory is designed to complement the growing core counts of modern server CPUs. As processors scale horizontally with additional cores and threads, memory bandwidth becomes a critical factor in sustaining performance. The Hynix HMCT04MGBRC546N ensures that memory-intensive tasks such as parallel processing, real-time analytics, and large-scale simulations can operate efficiently without being constrained by memory access limitations.

Dual-Channel DDR5 Architecture and Improved Efficiency

DDR5 introduces a refined memory architecture featuring dual independent 32-bit subchannels per DIMM, which improves parallelism and data efficiency. This architectural enhancement allows multiple memory operations to occur simultaneously, reducing idle cycles and improving effective bandwidth utilization. The Hynix HMCT04MGBRC546N leverages this architecture to deliver smoother performance under concurrent workloads commonly found in enterprise server environments.

The improved efficiency of DDR5 memory contributes to more predictable performance behavior, especially in scenarios where numerous applications and services compete for memory resources. By optimizing data flow and reducing contention, this memory category supports consistent service levels across diverse workloads.

CAS Latency CL46 and Timing Optimization

The CAS latency rating of CL46 reflects the timing characteristics optimized for high-frequency DDR5 operation. While DDR5 memory operates at higher absolute latency numbers compared to DDR4, the significantly increased clock speeds result in lower effective latency per data transfer. This balance between speed and timing ensures that applications experience responsive memory access without sacrificing throughput.

Latency-sensitive enterprise applications, including financial modeling, transaction processing systems, and real-time monitoring platforms, benefit from the optimized timing profile of this DDR5 RDIMM category. The memory module is designed to maintain stable latency behavior even under heavy load, which is critical for maintaining predictable application performance.

ECC Registered Memory for Enterprise Reliability

Error Correcting Code functionality is a defining feature of enterprise-class memory, and this DDR5 RDIMM category emphasizes data integrity and system stability. ECC technology detects and corrects single-bit memory errors automatically, preventing data corruption that could otherwise compromise application accuracy or system reliability. In environments where data integrity is critical, such as financial services, healthcare systems, and enterprise databases, ECC memory is a foundational requirement.

The registered DIMM design further enhances reliability by incorporating a register that buffers command and address signals between the memory controller and the DRAM chips. This buffering reduces electrical load on the memory controller, enabling stable operation with higher memory capacities and more populated DIMM slots. As a result, servers can scale memory resources without encountering signal integrity issues that could affect performance or uptime.

Stability in Multi-Socket and High-DIMM Configurations

Enterprise servers often operate in multi-socket configurations with numerous memory modules installed per system. Registered DDR5 memory is specifically designed to support these complex configurations by ensuring consistent signal quality across the memory bus. The Hynix HMCT04MGBRC546N fits seamlessly into such environments, providing stable performance even when all memory channels are fully populated.

This stability is essential for large-scale virtualization hosts, database servers, and cloud infrastructure nodes where downtime or memory-related errors can have widespread operational impacts. The ECC registered memory category prioritizes dependable operation under continuous, high-demand workloads.

1.1V Low-Voltage Operation and Power Efficiency

The Hynix HMCT04MGBRC546N operates at a nominal voltage of 1.1V, aligning with DDR5 standards focused on improved energy efficiency. Lower operating voltage reduces overall power consumption per memory module, which becomes increasingly important as memory capacities scale upward in modern servers. In large data centers, even modest reductions in per-module power usage can translate into significant energy savings and reduced operational costs.

DDR5 memory modules integrate on-DIMM power management through a dedicated Power Management Integrated Circuit. This design shifts voltage regulation from the motherboard to the memory module itself, resulting in more precise power delivery and improved electrical stability. The enhanced power management capabilities of this memory category contribute to consistent performance and reduced power-related variability.

Thermal Management and Data Center Cooling Benefits

Lower power consumption directly impacts thermal output, making low-voltage DDR5 RDIMM memory easier to cool in dense server environments. Reduced heat generation helps maintain optimal operating temperatures within server chassis, improving component longevity and reducing the strain on cooling systems. This is particularly advantageous in high-density racks and blade server deployments where airflow and thermal margins are limited.

By supporting efficient thermal behavior, this memory category aligns with data center strategies aimed at optimizing power usage effectiveness and minimizing cooling-related expenses.

288-Pin Low-Profile RDIMM Form Factor

The 288-pin RDIMM form factor ensures compatibility with modern server platforms that support DDR5 memory technology. This standardized physical and electrical interface allows the Hynix HMCT04MGBRC546N to integrate smoothly with enterprise-grade motherboards and server systems. The low-profile design further enhances compatibility by accommodating space-constrained server chassis and improving airflow across internal components.

Low-profile RDIMMs are particularly valuable in densely packed servers where vertical clearance is limited. By reducing module height, this memory category supports better airflow patterns and contributes to more uniform cooling across all installed components.

Broad Platform Support and Validation

This DDR5 RDIMM category is designed to work with next-generation server processors and chipsets that support high-speed DDR5 memory. Enterprise platforms benefit from extensive validation and testing performed by memory manufacturers to ensure compatibility and reliability. System integrators and IT administrators can deploy these memory modules with confidence, knowing they meet industry standards for performance and stability.

The emphasis on platform compatibility simplifies deployment in heterogeneous data center environments where different server models and configurations coexist.

Virtualization and Cloud Infrastructure Applications

Virtualization environments demand memory solutions that combine high capacity, consistent performance, and robust reliability. The 128GB DDR5 RDIMM category supports high virtual machine density by providing ample memory resources for concurrent workloads. This allows organizations to consolidate servers, improve resource utilization, and reduce hardware and energy costs.

In cloud computing infrastructures, scalable and efficient memory is essential for handling dynamic workloads and multi-tenant environments. DDR5 RDIMM memory provides the bandwidth and capacity needed to support rapid workload scaling while maintaining predictable performance. ECC protection ensures data integrity across shared resources, which is critical in cloud service delivery.

High-Performance Computing and Workload Enablement

High-performance computing workloads rely heavily on memory throughput and capacity to process complex calculations and large datasets efficiently. This DDR5 RDIMM category delivers the high bandwidth required for parallel processing tasks common in scientific research, engineering simulations, and financial analysis. The 128GB capacity allows large data structures and intermediate results to remain in memory, reducing reliance on slower storage subsystems.

Artificial intelligence and machine learning applications also benefit significantly from high-capacity, high-speed memory. During training and inference processes, large models and datasets require rapid access to memory. DDR5 RDIMM memory supports these requirements by delivering consistent performance and minimizing data transfer bottlenecks.

Big Data Analytics and In-Memory Processing

Big data analytics platforms increasingly rely on in-memory processing to deliver real-time insights. This memory category supports such use cases by enabling large datasets to be stored directly in RAM. Faster access to in-memory data reduces processing latency and improves the responsiveness of analytics engines.

Enterprise data warehouses and distributed analytics frameworks benefit from the parallel access capabilities and high throughput of DDR5 RDIMM memory, enabling faster data aggregation, transformation, and analysis.

Manufacturing Quality and Enterprise Reliability Standards

Hynix is globally recognized for its advanced memory manufacturing capabilities and stringent quality control processes. This DDR5 RDIMM category reflects a commitment to producing memory modules that meet enterprise reliability standards. Each module undergoes extensive testing to ensure consistent performance, compatibility, and durability in demanding server environments.

Reliability is a critical factor in enterprise memory selection, as memory failures can lead to system downtime and data loss. By adhering to rigorous manufacturing standards, this memory category provides dependable operation over extended service lifetimes.

Scalability and Long-Term Infrastructure Planning

DDR5 RDIMM memory represents a forward-looking investment for organizations planning long-term infrastructure growth. The high capacity and performance characteristics of this memory category support evolving software requirements and increasing data volumes. By deploying DDR5 memory, organizations can extend the usable lifespan of their server platforms and reduce the frequency of disruptive hardware upgrades.

The scalability of this memory category enables gradual expansion of memory resources as workload demands increase. This flexibility allows IT teams to align infrastructure investments with business growth while maintaining consistent performance and reliability.

Optimized Memory Category for Always-On Enterprise

This DDR5 RDIMM memory category is optimized for always-on enterprise environments where stability, efficiency, and performance are essential. The combination of ECC protection, registered design, high capacity, and low-voltage operation supports continuous operation under sustained workloads. These characteristics make the Hynix HMCT04MGBRC546N an integral component of modern server architectures focused on reliability and scalability.

By addressing the core requirements of contemporary data centers, this memory category delivers a balanced solution that supports high-performance computing, virtualization, cloud services, and enterprise analytics with confidence and consistency.