MTC40F2047S1RC56BB1R Micron 128GB PC5-44800 DDR5-5600MHz ECC RDIMM Memory Module

Memory Overview

The MTC40F2047S1RC56BB1R Micron 128GB PC5-44800 DDR5-5600MHz ECC RDIMM Memory Module belongs to the enterprise-grade DDR5 ECC Registered DIMM category, designed specifically for modern data center servers, enterprise workstations, and mission-critical computing platforms. This category represents a major generational leap from DDR4 technology, offering higher bandwidth, increased density, improved power efficiency, and enhanced reliability for compute-intensive environments.

Manufacturer & Identification

• Brand: Micron
• Part Reference: MTC40F2047S1RC56BB1R
• Product Type: DDR5 Registered ECC Memory Module

Memory Configuration

• Total Capacity: 128 GB single-module solution
• Module Layout: 1 × 128 GB configuration
• Rank Structure: Dual-rank (2Rx4) design
• Error Correction Code (ECC) for data accuracy
• Registered signal processing for improved reliability
• Enhanced support for continuous, heavy workloads
• Operating Speed: 5600 MHz
• Memory Standard: DDR5 / PC5-44800
• CAS Latency: CL46

Recommended Applications

• Data centers and cloud servers
• Virtualized environments
• High-performance computing systems
• Enterprise databases and analytics platforms

DDR5 ECC RDIMM Server Memory 

DDR5 ECC RDIMM modules such as this Micron 128GB module are engineered to meet the performance and stability demands of next-generation CPUs from Intel and AMD. They are widely deployed in virtualization platforms, cloud infrastructure, in-memory databases, AI/ML workloads, scientific computing, and enterprise storage systems where memory integrity and throughput are non-negotiable requirements.

Micron MTC40F2047S1RC56BB1R Product Classification

High-Density Registered DDR5 Memory

This module falls under the high-capacity DDR5 Registered DIMM (RDIMM) subcategory, offering an impressive 128GB capacity on a single module. RDIMM architecture uses a register (or buffer) to reduce electrical load on the memory controller, allowing for greater scalability and stability in multi-DIMM configurations commonly found in enterprise servers.

As part of Micron’s enterprise memory portfolio, the MTC40F2047S1RC56BB1R is built using premium DRAM components and validated under rigorous qualification standards. This makes it suitable for long-term deployment in always-on systems where downtime and data corruption carry significant operational costs.

PC5-44800 Performance Class

Rated at PC5-44800, this memory module delivers up to 44.8 GB/s of theoretical bandwidth per module. The PC5 designation identifies DDR5 memory, while the 44800 value reflects the peak transfer rate, making it ideal for workloads that rely heavily on memory throughput, such as real-time analytics and large-scale virtualization.

DDR5-5600MHz Speed and Bandwidth Advantages

Next-Generation Memory Frequency

Operating at 5600MHz, the Micron 128GB DDR5 RDIMM significantly outperforms previous DDR4-based solutions, which typically capped at 3200MHz. This increase in memory frequency enables faster data access, reduced latency for parallel processes, and improved overall system responsiveness.

Higher memory speeds are especially beneficial for multi-core processors, where multiple threads compete for memory access. DDR5-5600MHz memory ensures that CPUs remain fed with data, minimizing bottlenecks and maximizing compute efficiency.

Dual 32-Bit Channel Architecture

DDR5 memory introduces a dual-channel-per-DIMM design, splitting the traditional 64-bit channel into two independent 32-bit subchannels. This architectural enhancement improves efficiency and concurrency, allowing more simultaneous memory transactions and better utilization of available bandwidth.

ECC Registered DIMM Reliability Features

Error-Correcting Code (ECC) Protection

The inclusion of ECC (Error-Correcting Code) technology ensures data integrity by detecting and correcting single-bit memory errors in real time. In enterprise and server environments, even minor memory errors can lead to data corruption, application crashes, or system instability. ECC memory mitigates these risks, making it essential for mission-critical operations.

ECC RDIMM memory is a standard requirement in servers running financial systems, healthcare applications, scientific simulations, and other workloads where data accuracy is paramount.

Registered Signal Buffering

The registered design of this Micron DDR5 module uses a register to buffer command and address signals. This reduces the electrical load on the memory controller, enabling systems to support higher memory capacities and more populated DIMM configurations without compromising stability.

128GB Capacity Benefits for Enterprise Systems

High-Capacity Memory for Virtualization

With 128GB per module, this DDR5 RDIMM enables dense memory configurations that are ideal for virtualization platforms such as VMware, Hyper-V, and KVM. High memory capacity allows administrators to allocate more RAM to virtual machines, improving performance and consolidation ratios.

In multi-socket servers, combining multiple 128GB RDIMMs can deliver terabytes of system memory, supporting large-scale cloud environments and memory-intensive enterprise applications.

In-Memory Databases and Analytics

Modern databases increasingly rely on in-memory processing to deliver real-time insights. The Micron 128GB DDR5-5600 ECC RDIMM supports these workloads by providing both the capacity and bandwidth required to keep large datasets resident in memory, reducing reliance on slower storage tiers.

Power Efficiency and Thermal Characteristics

Optimized Power Management with DDR5

DDR5 memory introduces on-DIMM power management through an integrated Power Management IC (PMIC). This design improves voltage regulation and reduces power delivery noise compared to DDR4, contributing to greater overall system stability and efficiency.

Operating at lower voltages than previous generations, DDR5 RDIMM modules help reduce power consumption per gigabyte, an important consideration in large data centers aiming to optimize energy usage.

Thermal Stability for Continuous Operation

Micron engineers this memory module to maintain stable operation under sustained workloads and elevated temperatures. Proper thermal characteristics ensure consistent performance in high-density server environments where airflow and cooling efficiency are critical.

Platform Compatibility and Use Cases

Server and Workstation Compatibility

The MTC40F2047S1RC56BB1R Micron DDR5 RDIMM is designed for compatibility with server-grade motherboards and processors that support DDR5 ECC Registered memory. It is commonly deployed in systems based on modern Intel Xeon and AMD EPYC platforms that leverage DDR5 memory channels.

Micron Manufacturing Quality and Validation

Enterprise-Grade DRAM Components

Micron is a globally recognized leader in memory manufacturing, and this DDR5 ECC RDIMM module is built using high-quality DRAM chips produced in Micron’s advanced fabrication facilities. Each component is selected and tested to meet strict enterprise reliability standards.

Extensive Testing and Qualification

The MTC40F2047S1RC56BB1R undergoes comprehensive validation processes, including signal integrity testing, thermal stress testing, and compatibility verification with leading server platforms. This ensures predictable behavior and long-term reliability in production environments.

DDR5 RDIMM vs DDR4 RDIMM Comparison

Performance and Bandwidth Improvements

Compared to DDR4 RDIMM modules, DDR5 RDIMM memory offers significantly higher bandwidth, improved channel efficiency, and greater scalability. The jump from DDR4-3200 to DDR5-5600 represents a substantial increase in data transfer capability, directly benefiting modern multi-core processors.

Higher Density and Future Scalability

DDR5 technology enables higher per-module capacities, making 128GB RDIMMs more practical and widely available. This allows organizations to scale memory capacity without increasing the number of DIMM slots used, preserving expansion options for future upgrades.

Lifecycle Support and Long-Term Availability

Enterprise Lifecycle Management

Micron provides long-term product support and controlled change management for enterprise memory modules. This ensures consistent availability and minimizes disruptions caused by component changes during extended deployment cycles.

Ideal for Standardized Server Builds

The stability and predictable specifications of the MTC40F2047S1RC56BB1R make it well-suited for standardized server configurations in enterprise IT environments. Organizations can confidently deploy this DDR5 ECC RDIMM across multiple systems while maintaining consistent performance characteristics.