HMCG78MEBRX002N Hynix 16GB PC5-38400 DDR5-4800MHz ECC RAM

Hynix HMCG78MEBRX002N 16GB RAM

The Hynix HMCG78MEBRX002N 16GB PC5-38400 DDR5-4800MHz 1Rx8 ECC Memory is a high-performance server-grade memory module designed for speed, stability, and error correction in enterprise computing environments.

General Information

• Manufacturer: Hynix
• Model Number: HMCG78MEBRX002N
• Memory Type: 16GB DDR5 SDRAM Module

Technical Specifications

Capacity & Technology

• Total Capacity: 16GB
• Memory Technology: DDR5 SDRAM

Module Details

• Number of Modules: 1 x 16GB
• Memory Speed: 4800MHz
• Memory Standard: DDR5-4800MHz / PC5-38400

Error Correction & Voltage

• Error Checking: ECC (Error-Correcting Code)
• Operating Voltage: 1.2V

Physical Characteristics

Form Factor

• Design: 288-pin DIMM

Dimensions

• Height: 2.00 inches
• Depth: 7.00 inches

Weight

• Shipping Weight: 0.20 lb

Overview of Enterprise-Class 16GB DDR5 Registered Memory

The Hynix HMCG78MEBRX002N 16GB PC5-38400 DDR5 4800MHz SDRAM RDIMM memory module belongs to the latest generation of enterprise-grade system memory designed to meet the evolving performance, scalability, and reliability requirements of modern server platforms. As part of the DDR5 registered DIMM category, this module represents a substantial architectural leap compared to DDR4, enabling data centers, enterprise IT teams, and cloud infrastructure providers to support increasingly demanding workloads with improved bandwidth efficiency and power management.

DDR5 RDIMM memory modules are purpose-built for servers and workstations that require consistent performance under sustained loads. The registered design introduces a register clock driver that buffers command and address signals, allowing systems to scale to higher memory capacities without compromising stability. This architectural feature is especially valuable in multi-socket server configurations, virtualization environments, and enterprise applications where memory density and signal integrity are critical.

Advancements Introduced by DDR5 Technology

DDR5 technology significantly improves upon the capabilities of previous memory generations by doubling the bank count and increasing burst length, which directly enhances memory throughput. With a native speed rating of 4800MHz and a PC5-38400 bandwidth specification, this Hynix module delivers substantially higher data transfer rates than DDR4-based solutions. These advancements enable faster data access for processors, reducing latency bottlenecks in memory-intensive applications such as large-scale databases, analytics engines, and high-performance computing workloads.

Another notable innovation in DDR5 memory is the introduction of on-die error correction, which works alongside traditional ECC features found in RDIMM modules. This additional layer of reliability helps detect and correct internal memory errors, contributing to improved data integrity and system uptime. For enterprise environments where data accuracy and service continuity are non-negotiable, these improvements offer tangible operational benefits.

Hynix Engineering and Manufacturing Excellence

SK hynix is globally recognized as one of the leading manufacturers of semiconductor memory solutions, with a strong reputation for quality, innovation, and consistency. The HMCG78MEBRX002N memory module reflects Hynix’s rigorous engineering standards and extensive experience in producing enterprise-class DRAM for mission-critical systems. Each module is manufactured using advanced process technologies and subjected to comprehensive testing to ensure compliance with industry specifications and long-term reliability expectations.

Hynix DDR5 RDIMM modules are designed to meet strict JEDEC standards, ensuring broad compatibility across supported server platforms. This adherence to open standards allows system integrators and IT professionals to deploy memory upgrades with confidence, knowing that the module will operate reliably within validated hardware ecosystems.

Quality Control and Validation Processes

Enterprise memory modules such as the HMCG78MEBRX002N undergo extensive validation cycles that simulate real-world operating conditions. These processes include thermal stress testing, signal integrity verification, and endurance testing under sustained workloads. Such validation ensures that the memory performs consistently in data center environments where systems often operate continuously for extended periods.

By maintaining strict quality control throughout the manufacturing lifecycle, Hynix ensures that each DDR5 RDIMM module meets the expectations of enterprise customers who prioritize reliability, predictability, and long service life.

Performance Characteristics and Bandwidth Capabilities

With a capacity of 16GB and a speed rating of 4800MHz, the Hynix HMCG78MEBRX002N module delivers a balanced combination of density and performance. The PC5-38400 specification indicates a theoretical bandwidth of up to 38.4GB/s per module, enabling servers to process large volumes of data more efficiently. This level of performance is particularly beneficial in environments that rely on rapid memory access, such as virtualization hosts, in-memory databases, and AI inference platforms.

The increased bandwidth of DDR5 memory helps modern multi-core processors operate closer to their full potential. As CPUs continue to add more cores and threads, memory subsystems must scale accordingly to avoid performance bottlenecks. DDR5 RDIMM modules address this challenge by providing the throughput necessary to feed data to processors efficiently.

Latency Considerations and Real-World Impact

While raw frequency is an important metric, enterprise workloads also depend on predictable latency characteristics. DDR5 memory introduces architectural changes that improve parallelism, helping offset latency increases associated with higher frequencies. In practical deployments, this results in smoother performance for applications that rely on frequent memory access patterns, such as transaction processing systems and enterprise resource planning platforms.

The registered design further enhances stability in high-capacity configurations, ensuring that latency remains consistent even as memory channels are fully populated.

Power Efficiency and Thermal Management

One of the defining features of DDR5 memory is its improved power efficiency compared to earlier generations. The Hynix HMCG78MEBRX002N operates at a lower nominal voltage, reducing overall power consumption at the system level. This efficiency gain is particularly valuable in data centers, where power usage and thermal output directly impact operational costs.

DDR5 introduces on-module power management integrated circuits, which shift voltage regulation responsibilities from the motherboard to the memory module itself. This architectural change allows for more precise power delivery and improved signal integrity, contributing to both performance stability and energy efficiency.

Thermal Stability in Dense Server Environments

In high-density server configurations, thermal management is a critical concern. The design of Hynix DDR5 RDIMM modules takes thermal performance into account, ensuring reliable operation under sustained workloads. Efficient power distribution and optimized PCB layouts help minimize heat generation, supporting stable operation even in rack-mounted systems with limited airflow.

This focus on thermal stability makes the module suitable for enterprise environments where systems are expected to maintain peak performance around the clock.

ECC Functionality and Data Integrity

Error correction is a cornerstone of enterprise memory design, and the Hynix HMCG78MEBRX002N incorporates advanced ECC functionality to protect data integrity. ECC memory can detect and correct single-bit errors and identify multi-bit errors, reducing the risk of data corruption that could compromise applications or system stability.

When combined with DDR5’s on-die error correction, ECC RDIMM modules provide a multi-layered approach to reliability. This is especially important for applications that process sensitive data, such as financial transactions, healthcare records, and large-scale analytics.

Reliability Benefits for Mission-Critical Applications

Enterprise applications often operate under strict uptime requirements, where even minor data errors can lead to significant disruptions. The ECC capabilities of this DDR5 RDIMM module help ensure that systems remain resilient against memory-related faults, supporting continuous operation and reducing the likelihood of unplanned downtime.

For IT teams responsible for maintaining service-level agreements, the reliability advantages of ECC memory translate directly into operational confidence.

Compatibility with Modern Server Platforms

The Hynix HMCG78MEBRX002N 16GB DDR5 RDIMM is designed for compatibility with next-generation server platforms that support DDR5 memory standards. These platforms typically include the latest server processors and chipsets engineered to take full advantage of DDR5’s increased bandwidth and efficiency.

As server architectures evolve, memory compatibility becomes increasingly important. Hynix ensures that its DDR5 RDIMM modules are validated against a wide range of server systems, helping organizations deploy upgrades or new builds without compatibility concerns.

Scalability Across Multi-Socket Configurations

Registered DIMMs are essential for scaling memory capacity in multi-socket server environments. By buffering command and address signals, RDIMMs enable systems to support larger memory footprints while maintaining signal integrity. This scalability is critical for workloads that demand high memory capacity, such as virtualization clusters and enterprise databases.

The 16GB capacity of this module allows for flexible memory configurations, enabling administrators to balance capacity and performance according to specific workload requirements.

Use Cases Across Enterprise and Data Center Workloads

The DDR5 RDIMM memory category serves a broad range of enterprise use cases, and the Hynix HMCG78MEBRX002N is well-suited to many of these scenarios. In virtualization environments, higher memory bandwidth and improved efficiency help support greater virtual machine density and smoother workload consolidation.

In database-driven applications, faster memory access reduces query response times and improves overall system responsiveness. Analytics platforms and in-memory computing frameworks also benefit from the increased throughput and parallelism offered by DDR5 technology.

Support for Emerging Technologies

As organizations adopt technologies such as artificial intelligence, machine learning, and real-time analytics, memory performance becomes a key factor in overall system capability. DDR5 RDIMM modules provide the foundation needed to support these emerging workloads, ensuring that servers can process large data sets efficiently.

The combination of bandwidth, reliability, and efficiency makes this memory category an essential component of future-ready enterprise infrastructure.

Positioning Within the DDR5 RDIMM Category

The Hynix HMCG78MEBRX002N 16GB PC5-38400 DDR5 4800MHz SDRAM RDIMM occupies a key position within the broader DDR5 registered memory category. It delivers a practical capacity point combined with the performance and reliability features expected in enterprise environments.

By leveraging Hynix’s manufacturing expertise and DDR5’s architectural advancements, this memory module supports the needs of modern servers while providing a stable foundation for future expansion. Its role within the category underscores the importance of high-quality, standards-compliant memory in building resilient and high-performing enterprise systems.