MEM-DR512MH-ER48 Supermicro 128GB RAM DDR5-4800MHz 4rX4 Ecc

Highlights of Supermicro MEM-DR512MH-ER48 128GB DDR5 Ram

The Supermicro MEM-DR512MH-ER48 is a high-capacity 128GB DDR5 RDIMM memory module engineered for enterprise servers and data center environments. Offering a fast 4800MHz speed (PC5-38400), this module ensures high-performance, reliability, and stability for demanding workloads such as virtualization, cloud computing, and large-scale databases.

General Information

• Manufacturer: Supermicro
• Part Number: MEM-DR512MH-ER48
• Product Type: Server Memory Module
• Sub Type: DDR5-4800MHz PC5-38400 

Technical Specifications

• Total Memory: 128GB
• Memory Type: DDR5 SDRAM
• Module Configuration: 1 x 128GB
• Bus Speed: 4800MHz DDR5 / PC5-38400
• CAS Latency: CL40
• Rank Configuration: 4Rx4
• Signal Type: Registered (RDIMM)
• Error Protection: ECC Enabled

Physical Specifications

• Form Factor: 288-Pin RDIMM
• Shipping Height: 1.00 Inch
• Shipping Depth: 6.75 Inches
• Shipping Weight: 0.20 lb

Compatibility.

Supported Server Platforms

• Supermicro servers with DDR5 RDIMM memory support
• Enterprise and data center systems requiring 288-pin DDR5 modules
• Servers based on Intel® Xeon® Scalable and AMD EPYC™ processors with DDR5 architecture

Memory Slot and System Requirements

• 288-pin RDIMM memory slots
• DDR5-compatible server motherboard
• Registered (RDIMM) memory support enabled in system BIOS

Overview of Supermicro MEM-DR512MH-ER48 PC5-38400 RDIMM

The Supermicro MEM-DR512MH-ER48 128GB DDR5-4800MHz PC5-38400 RDIMM 4Rx4 ECC Memory Module belongs to the advanced category of high-performance server memory solutions engineered for modern data centers, enterprise computing, and mission-critical workloads. This category includes memory modules designed to offer a combination of large capacity, high reliability, and consistent performance under continuous operation. These modules support the next-generation server architectures, enabling organizations to scale efficiently while maintaining stability and data integrity across their systems.

High-Density 128GB RDIMM Architecture

The 128GB RDIMM configuration in this category provides a foundation for building servers with substantial memory capacity. High-density modules allow enterprises to reduce the number of DIMMs required to achieve large memory pools, minimizing motherboard slot consumption while improving airflow and thermal performance. The Supermicro MEM-DR512MH-ER48 enables organizations to scale their memory infrastructure without compromising performance or stability.

4Rx4 Memory Rank Configuration

The 4Rx4 rank design of the Supermicro MEM-DR512MH-ER48 enhances performance and memory density by offering four ranks of DRAM chips organized in x4 configuration. Rank interleaving improves data throughput by allowing the memory controller to access multiple ranks simultaneously, thereby reducing latency and improving efficiency. The x4 organization also facilitates advanced error detection and correction, critical for enterprise applications that require consistent data integrity.

DDR5-4800MHz Performance

Operating at 4800MHz, DDR5 memory modules in this category provide a balance between high bandwidth and energy efficiency. The Supermicro MEM-DR512MH-ER48 is optimized to deliver reliable performance across enterprise server platforms, maintaining stability even under heavy workloads. DDR5 technology incorporates dual independent subchannels per DIMM, allowing for better parallelism and more efficient data transfer, which improves overall system throughput compared to previous DDR generations.

PC5-38400 Bandwidth and Data Throughput

The PC5-38400 designation indicates a theoretical peak bandwidth of 38.4GB/s per module. In multi-channel memory configurations, the aggregate bandwidth can reach levels sufficient to support high-performance computing, in-memory databases, and large-scale virtualization. This bandwidth capability ensures that processors can be efficiently fed with data, reducing the likelihood of bottlenecks in data-intensive workloads. Maintaining consistent bandwidth under sustained operation is crucial in enterprise environments where workloads often run 24/7. Modules in this category are tested for stability and reliability to ensure consistent data throughput across a wide range of workloads and server configurations.

ECC Memory for Data Integrity

Error-correcting code (ECC) memory is a defining feature of this category. The Supermicro MEM-DR512MH-ER48 integrates ECC technology to detect and correct single-bit memory errors while identifying multi-bit errors. This capability ensures data integrity, reduces the risk of system crashes, and safeguards critical workloads from data corruption. ECC RDIMM modules are essential for enterprise environments where uptime, reliability, and data accuracy are non-negotiable. They are especially valuable in financial systems, healthcare IT infrastructure, cloud environments, and large-scale enterprise applications that process sensitive.

Registered DIMM Signal Integrity

Registered buffering in this category provides improved signal integrity, especially in servers with multiple DIMM slots and high channel counts. The register acts as an intermediary between the memory controller and DRAM chips, reducing the electrical load and allowing for reliable operation in dense memory configurations. This technology ensures that high-performance servers can utilize large amounts of memory without compromising stability. Signal integrity is crucial in multi-socket servers, where complex interconnections and high-speed data transfers can lead to electrical interference or timing issues.

Modern Enterprise Server Platforms

This category of server memory is designed for broad compatibility with enterprise-grade motherboards and server platforms that support DDR5 RDIMM modules. The 288-pin form factor ensures seamless installation and integration into a variety of Supermicro server systems. Firmware-level optimizations in this category ensure that memory modules are correctly detected, configured, and operated at rated speeds, simplifying deployment and management. Compatibility also extends to multi-socket and multi-channel configurations, allowing for balanced memory distribution and optimal system performance. Servers equipped with modules from this category can support a wide range of enterprise applications while maintaining stability and predictable performance.

Hypervisor-Optimized Deployments

High-density DDR5 RDIMM memory is particularly advantageous in virtualized server environments. Virtual machines and hypervisor-based workloads benefit from abundant, high-speed memory, which allows multiple instances to run concurrently without resource contention. The Supermicro MEM-DR512MH-ER48 provides sufficient capacity to allocate memory generously across virtual machines, improving performance, isolation, and scalability. Virtualization workloads are often sensitive to memory latency and bandwidth. DDR5’s dual subchannel design and high data transfer rates ensure that virtualized environments remain responsive even under peak utilization, making this category ideal for cloud infrastructure, private data centers, and enterprise virtualization strategies.

Containerized Workloads and Cloud-Native Applications

Containerized applications and cloud-native platforms rely on dynamic memory allocation and high throughput. This category of server memory provides the performance, capacity, and reliability needed to support large-scale container deployments. With the Supermicro MEM-DR512MH-ER48, IT administrators can efficiently allocate memory to containerized workloads, improving application performance and density in enterprise cloud environments. High-capacity DDR5 RDIMM modules allow organizations to deploy multiple containers per host while maintaining consistent memory access speeds.

Computing and Scientific Applications

High-performance computing (HPC) workloads require memory systems capable of sustaining continuous, data-intensive operations. The 128GB DDR5-4800MHz RDIMM modules in this category provide the bandwidth, capacity, and stability necessary for scientific simulations, modeling, and parallel processing tasks. The Supermicro MEM-DR512MH-ER48 ensures that compute nodes have rapid access to datasets, enabling efficient execution of HPC workloads. Consistency and reliability are critical for HPC applications, where prolonged computational jobs must complete without error. The ECC and RDIMM technologies integrated into this category of memory guarantee that errors are detected and corrected in real-time, maintaining accurate computational results.

Enterprise Deployment and Scalability

Enterprise-grade server memory must support long-term deployment while remaining compatible with evolving infrastructure. This category of DDR5 RDIMM memory is designed to align with enterprise IT strategies, providing scalability, performance, and reliability throughout the server lifecycle. Organizations can deploy the Supermicro MEM-DR512MH-ER48 with confidence, knowing it supports high-density configurations, future upgrades, and multi-generational server deployments. Incremental scaling is possible with high-capacity 128GB modules, allowing enterprises to expand memory as workloads grow without requiring extensive hardware replacement. This approach reduces capital expenditure and ensures that server infrastructure remains adaptable to changing business demands.

Operational Value

Using high-density modules in this category can improve total cost of ownership by reducing the number of DIMMs required for large memory configurations. Fewer modules per system mean lower power consumption, reduced cooling needs, and simplified maintenance. The Supermicro MEM-DR512MH-ER48 delivers enterprise-grade performance while helping organizations optimize operational efficiency and control infrastructure costs. Operational reliability is further enhanced by ECC error correction and RDIMM buffering, minimizing system downtime and maintenance interventions. This combination of high capacity, energy efficiency, and robust error management makes the category suitable for mission-critical environments with stringent uptime requirements.

Quality Assurance and Validation Standards

Modules in this category undergo extensive quality assurance and validation processes to ensure compatibility and stability in enterprise server environments. The Supermicro MEM-DR512MH-ER48 meets rigorous industry standards, guaranteeing reliable performance across supported server platforms. This validation ensures that memory modules can be deployed at scale with predictable behavior and minimal risk of compatibility issues. Enterprise memory validation covers electrical characteristics, timing parameters, thermal behavior, and long-term reliability, ensuring that deployed systems maintain consistent performance even under continuous, high-intensity workloads.

Enterprise Readiness

Enterprise readiness encompasses not only technical performance but also long-term availability, support, and infrastructure alignment. This category of DDR5 RDIMM memory is intended for deployment in enterprise environments, where longevity, consistent performance, and vendor support are critical. The Supermicro MEM-DR512MH-ER48 provides a foundation for modern server architectures, supporting the evolution of enterprise IT systems and enabling organizations to meet the demands of increasingly data-intensive workloads.