HMCT04MGBRC Hynix 128GB DDR5 5600MHz PC5-44800 ECC Memory.

Hynix HMCT04MGBRC 128GB 5600MHz PC5-44800 Memory

Drive enterprise-scale workloads with the SK hynix HMCT04MGBRC, an ultra-high-capacity DDR5 server memory module engineered for maximum density and data center reliability.

Product Overview and Identification

• Brand: SK hynix
• Part Number: HMCT04MGBRC
• Component Type: DDR5 ECC Registered RDIMM
• Module Capacity: 128 Gigabytes (GB)

Technical Specifications

• Memory Technology: DDR5 SDRAM
• Data Transfer Speed: 5600 MT/s (PC5-44800)
• Error Correction: ECC (Enhanced with x8 chipkill capability for superior fault tolerance)
• Module Configuration: 2Rx4 (Dual Rank)
• Module Type: Registered (RDIMM)
• Physical Interface: 288-pin RDIMM
• Profile: Low-Profile Design - Optimized for compatibility in dense server configurations with potential clearance constraints.
• Operating Voltage: 1.1V

Physical Dimensions and Specifications

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

Hynix HMCT04MGBRC 128GB PC5-44800 Memory Overview

The category of enterprise-grade DDR5 ECC Registered server memory modules represents a critical foundation for modern data centers, cloud infrastructures, high-performance computing environments, and mission-critical enterprise servers. Within this category, the Hynix HMCT04MGBRC 128GB DDR5 5600MHz PC5-44800 ECC Registered CL46 1.1v 288-pin Low-profile RDIMM Server Memory Module exemplifies the technological evolution of server memory, combining ultra-high capacity, next-generation DDR5 performance, and enterprise reliability features designed for sustained workloads and continuous operation. This category focuses on memory solutions optimized for scalability, bandwidth efficiency, data integrity, and long-term operational stability across a wide range of server platforms.

Role of High-Capacity RDIMM Memory in Modern Servers

Registered Dual Inline Memory Modules occupy a central role in enterprise server architectures due to their ability to support larger memory capacities with improved electrical stability. The RDIMM category is engineered to reduce the electrical load on the memory controller by incorporating a register between the DRAM chips and the memory controller. This design allows servers to populate more memory modules per channel while maintaining signal integrity, which is essential for platforms that demand hundreds of gigabytes or even terabytes of system memory. The Hynix HMCT04MGBRC, with its 128GB capacity per module, fits squarely into this category, enabling dense memory configurations without compromising reliability.

Transition from DDR4 to DDR5 Server Memory

The DDR5 memory category marks a significant generational shift from DDR4, introducing higher base frequencies, increased bandwidth per module, and enhanced power efficiency. DDR5 server memory operates with a redesigned power management architecture that moves voltage regulation closer to the module itself, allowing finer-grained control and improved power delivery. In this category, DDR5 5600MHz memory such as the Hynix HMCT04MGBRC offers substantial gains in throughput compared to previous generations, making it particularly suitable for data-intensive workloads, virtualization clusters, and in-memory databases.

Technical Architecture of DDR5 ECC Registered Memory

The architecture of DDR5 ECC Registered memory modules is designed to address the growing demands of enterprise computing. This category emphasizes advanced signaling, higher density DRAM dies, and integrated error protection mechanisms. The Hynix HMCT04MGBRC module exemplifies these architectural improvements by combining high-speed PC5-44800 bandwidth with robust ECC functionality, ensuring consistent performance under sustained load.

Error Correction Code and Data Integrity

ECC Registered memory is a defining feature of server-class memory categories, providing automatic detection and correction of single-bit memory errors while detecting multi-bit errors. This capability is essential for enterprise environments where data corruption can lead to system crashes, data loss, or silent computation errors. The ECC functionality in this category operates transparently at the hardware level, safeguarding critical applications such as financial systems, healthcare platforms, virtualization hosts, and large-scale analytics engines. The Hynix HMCT04MGBRC integrates ECC at the module level, reinforcing the reliability expectations of enterprise-grade memory solutions.

Impact of ECC on System Stability

Within this category, ECC memory significantly enhances system uptime by reducing the frequency of memory-related faults. As memory densities increase, the probability of transient bit errors caused by electrical noise or cosmic radiation also rises. ECC Registered DDR5 modules mitigate these risks, making them indispensable for servers that operate continuously. The presence of ECC aligns this category with mission-critical deployments where reliability is non-negotiable.

Registered Buffer and Signal Integrity

The registered buffer in RDIMM memory categories serves as an intermediary that re-drives command and address signals, reducing the electrical burden on the CPU’s integrated memory controller. This design allows for higher memory capacities and more stable operation at higher frequencies. In the context of DDR5 5600MHz operation, the registered architecture ensures that signal integrity is maintained even in fully populated server configurations. The Hynix HMCT04MGBRC benefits from this architecture, enabling consistent performance across large memory footprints.

Scalability Advantages in Multi-Socket Servers

Enterprise servers often employ multi-socket CPU configurations to maximize compute density. RDIMM memory categories are specifically designed to scale efficiently in such environments. By supporting higher module counts per channel, this category allows system architects to build servers with expansive memory pools that can accommodate virtualization, container orchestration, and large-scale data processing workloads without bottlenecks.

Performance Characteristics of DDR5 5600MHz Server Memory

Performance is a defining attribute of the DDR5 5600MHz ECC Registered memory category. With a theoretical bandwidth of PC5-44800, this category delivers substantial improvements in data transfer rates compared to earlier DDR4-based solutions. The Hynix HMCT04MGBRC module embodies these performance enhancements, offering high throughput that supports modern CPU architectures and memory-intensive applications.

Bandwidth and Throughput Improvements

The PC5-44800 specification indicates a peak bandwidth of 44.8 GB/s per module, a significant leap over DDR4 counterparts. This increased bandwidth is particularly beneficial for workloads that rely on rapid data movement between memory and CPU, such as real-time analytics, artificial intelligence inference, scientific simulations, and large-scale virtualization. In this category, higher bandwidth translates directly into improved application responsiveness and reduced latency under load.

Latency Considerations and CL46 Timing

While DDR5 introduces higher latency numbers compared to DDR4 due to increased frequencies, the overall performance impact is mitigated by the substantial gains in bandwidth. The CL46 timing of the Hynix HMCT04MGBRC is characteristic of high-capacity DDR5 RDIMM modules, balancing access latency with throughput efficiency. Within this category, the focus is on sustained performance and stability rather than minimal latency, making these modules ideal for enterprise workloads that prioritize consistency.

Real-World Application Performance

In practical server environments, DDR5 5600MHz RDIMM memory demonstrates measurable improvements in workload execution times, especially for parallelized tasks. Database query processing, virtual machine density, and memory-resident caching systems all benefit from the expanded bandwidth and improved memory subsystem efficiency that define this category.

High-Density 128GB RDIMM Memory Category

The 128GB RDIMM subcategory represents the upper tier of server memory density, enabling servers to achieve massive memory capacities with fewer modules. This approach simplifies system design, reduces power consumption per gigabyte, and improves airflow within server chassis. The Hynix HMCT04MGBRC fits squarely within this high-density category, offering enterprise users a reliable path to scaling memory capacity.

Benefits of Large-Capacity Memory Modules

High-capacity memory modules allow organizations to consolidate workloads onto fewer physical servers, reducing infrastructure complexity and operational costs. In virtualization and cloud computing environments, the ability to allocate large memory pools to virtual machines is critical for performance isolation and scalability. This category supports such use cases by providing stable, high-density memory solutions.

Memory Consolidation and Virtualization Efficiency

Within this category, 128GB RDIMM modules enable higher virtual machine density per host, allowing data centers to maximize resource utilization. Memory-intensive applications such as ERP systems, in-memory databases, and analytics platforms benefit from the ability to access large contiguous memory spaces without relying on slower storage-based caching mechanisms.

Power Efficiency and Thermal Characteristics

Power efficiency is a critical consideration in modern data centers, and the DDR5 server memory category introduces meaningful improvements in this area. Operating at 1.1 volts, the Hynix HMCT04MGBRC consumes less power per bit transferred compared to previous generations, contributing to lower overall energy consumption.

Integrated Power Management in DDR5

DDR5 memory modules incorporate on-module power management integrated circuits that regulate voltage more precisely. This architectural change enhances power efficiency and reduces noise, resulting in more stable operation. Within this category, improved power management supports higher frequencies without proportionally increasing power draw.

Thermal Design and Low-Profile Form Factor

The low-profile design of this RDIMM category ensures compatibility with a wide range of server chassis, including high-density rack-mounted systems. Efficient thermal characteristics help maintain stable operating temperatures, reducing the need for aggressive cooling solutions. The Hynix HMCT04MGBRC’s low-profile form factor supports optimal airflow, which is essential in tightly packed server environments.

Impact on Data Center Cooling Strategies

Lower power consumption and efficient heat dissipation contribute to reduced cooling requirements at the data center level. This category aligns with modern sustainability initiatives by helping organizations lower their total cost of ownership through energy-efficient hardware choices.

Compatibility with Modern Server Platforms

The DDR5 ECC Registered memory category is designed to be compatible with the latest generation of server processors and chipsets. The Hynix HMCT04MGBRC adheres to JEDEC standards, ensuring broad compatibility across enterprise server platforms from major OEMs.

Processor and Chipset Support

Modern server CPUs from leading manufacturers support DDR5 RDIMM memory to take advantage of increased bandwidth and capacity. This category is optimized for platforms that require high memory throughput to feed multi-core processors efficiently. Compatibility with current and future server architectures ensures long-term viability for enterprise deployments.

BIOS and Firmware Integration

Enterprise-grade memory modules in this category are validated with server BIOS and firmware to ensure stable operation under diverse workloads. Proper integration allows features such as memory training, error reporting, and performance tuning to function seamlessly, enhancing overall system reliability.

Reliability, Validation, and Enterprise Quality Standards

Enterprise memory categories prioritize reliability and extensive validation processes. The Hynix HMCT04MGBRC is manufactured and tested to meet stringent quality standards, ensuring consistent performance throughout its operational lifespan.

Manufacturing Quality and Testing

Server memory modules in this category undergo comprehensive testing for electrical stability, thermal performance, and compatibility. Rigorous validation processes reduce the likelihood of early-life failures and ensure predictable behavior in production environments.

Long-Term Deployment and Lifecycle

Enterprise deployments often require hardware components with extended availability and support lifecycles. This category is aligned with such requirements, providing organizations with confidence that their memory investments will remain supported and compatible over time.

Contribution to System-Level Reliability

By combining ECC protection, registered buffering, and DDR5 advancements, this category contributes significantly to overall system reliability. Memory-related failures are minimized, supporting continuous operation and reducing maintenance overhead in large-scale deployments.