Description

The Micron MTC20F1045S1TC48BA1 is a high-capacity 64GB DDR5 SDRAM ECC Registered DIMM (RDIMM) designed for modern enterprise servers, professional workstations, data-center infrastructure, and other computing platforms that support DDR5 registered memory.

Operating at DDR5-4800 / 4800 MT/s, the module provides high memory-transfer performance and a theoretical peak bandwidth of approximately 38.4 GB/s per module. This makes it well suited to demanding applications that require substantial memory capacity and high data throughput, including virtualization, databases, cloud infrastructure, analytics, scientific computing, and professional workloads.

The module provides a substantial 64GB capacity in a single DIMM, allowing compatible servers to increase total system memory while using fewer physical memory slots than lower-capacity modules. This is particularly useful in high-density server configurations where available DIMM slots are limited or where maximizing memory capacity per channel is important.

The 2Rx4 dual-rank architecture is designed for server-class memory configurations. The module uses ECC (Error-Correcting Code) technology for improved memory data integrity and a Registered architecture intended for supported server memory controllers.

The MTC20F1045S1TC48BA1 operates at 1.1V and is specified with 40-39-39 memory timing at DDR5-4800.

Key Technical Specifications

The 64GB capacity, DDR5-4800 speed, 2Rx4 organization, ECC Registered architecture, 1.1V voltage, and 40-39-39 timing are identified for this exact MPN in available product-reference data.

64GB High-Density Memory

One of the main advantages of the MTC20F1045S1TC48BA1 is its 64GB capacity per module.

A single 64GB DIMM allows compatible servers to increase memory capacity while preserving additional DIMM slots for future expansion.

For example:

Actual maximum memory depends on the server motherboard, CPU memory controller, BIOS, number of memory channels, and manufacturer-specific population rules.

DDR5-4800 Performance

The module operates at 4800 MT/s, providing a theoretical bandwidth of approximately 38.4 GB/s per module.

This high transfer rate is beneficial for workloads that continuously move large amounts of information between the processor and system memory.

Suitable workloads include:

• Virtualization
• Database servers
• Cloud computing
• Enterprise applications
• Data analytics
• Artificial intelligence workloads
• High-performance computing
• Scientific applications
• Large-scale web applications
• Content and media processing
• Professional workstations

Actual application performance depends on the complete system architecture, including CPU, memory channels, DIMM population, storage, and software.

ECC Memory for Improved Data Integrity

The ECC (Error-Correcting Code) architecture is intended for platforms where memory reliability and data integrity are important.

ECC memory can detect and correct certain types of memory errors, helping reduce the risk of data corruption caused by memory faults.

This makes ECC memory particularly appropriate for:

• Mission-critical servers
• Database infrastructure
• Virtualization hosts
• Financial and enterprise applications
• Scientific computing
• Long-running server environments
• Data-center systems

Important: ECC functionality requires a compatible processor and motherboard. ECC memory does not automatically provide ECC operation when installed in an incompatible consumer platform.

Registered DIMM Architecture

The MTC20F1045S1TC48BA1 is a Registered DIMM (RDIMM).

RDIMM technology uses a register/buffer on the module for address and control signals. This reduces the electrical load presented directly to the memory controller and enables server platforms to support larger and more complex memory configurations.

Because of its Registered architecture, this module is not interchangeable with standard DDR5 UDIMM memory.

This module is not intended for typical:

• Consumer desktop PCs
• Standard DDR5 UDIMM systems
• DDR5 laptop SO-DIMM systems
• Systems that do not support ECC RDIMM

Always confirm the server’s qualified memory list before installation.

2Rx4 Dual-Rank Configuration

The 2Rx4 specification identifies the module as dual-rank memory using x4 DRAM organization.

Rank configuration is important in server environments because supported memory configurations can vary according to:

• CPU generation
• Number of DIMMs per channel
• Number of populated channels
• DIMM capacity
• Memory speed
• Motherboard design

For this reason, the MTC20F1045S1TC48BA1 should be installed according to the server manufacturer’s recommended DIMM population configuration.

1.1V DDR5 Operation

The module is specified for 1.1V operation.

DDR5’s lower nominal operating voltage compared with DDR4 is part of the technology’s overall approach to improving memory performance and efficiency.

The module also incorporates DDR5 platform technologies designed to support reliable high-speed operation.

40-39-39 Memory Timing

The MTC20F1045S1TC48BA1 is specified with:

40-39-39 timing at DDR5-4800

Memory timing describes the latency associated with various memory operations. The timing values should be evaluated alongside the module’s operating data rate rather than independently.

For server applications, stability and platform compatibility are generally more important than attempting to optimize individual timing values.

Enterprise Applications

🖥️ Data-Center Servers

The 64GB capacity is particularly useful for high-density server configurations where maximizing RAM per DIMM slot is important.

☁️ Cloud Infrastructure

High-capacity DDR5 RDIMMs can help cloud and infrastructure servers support more workloads and larger memory allocations.

🧩 Virtualization

A larger system-memory pool allows compatible virtualization hosts to allocate more RAM to virtual machines.

🗄️ Database Servers

Large memory configurations can improve the ability of database systems to retain frequently accessed information in RAM.

📊 Data Analytics

High memory capacity and bandwidth are beneficial for applications processing large datasets.

🔬 High-Performance Computing

DDR5-4800 provides high memory throughput for scientific, engineering, and technical workloads.

🖥️ Professional Workstations

Compatible professional workstations can use high-capacity ECC RDIMMs for demanding engineering, simulation, rendering, and computational applications.

Compatibility

Before purchasing, verify that the target system specifically supports:

DDR5 ECC Registered DIMM (RDIMM)

and confirm:

• 64GB DIMM capacity
• DDR5-4800
• 2Rx4 memory organization
• ECC support
• Registered/RDIMM support
• 288-pin DDR5 DIMM slots
• Processor memory-controller compatibility
• Maximum supported memory capacity
• Supported DIMM population
• BIOS/firmware requirements

⚠️ Important

Do not assume that any motherboard with a DDR5 DIMM slot can use this module.

A motherboard can physically accept a DDR5 DIMM while still being electrically or logically incompatible with ECC RDIMM memory.

Major Product Benefits

64GB High-Density Capacity

Provides a large amount of memory from a single module, helping maximize server memory capacity.

DDR5-4800 Performance

Provides high-speed memory transfers at 4800 MT/s.

ECC Reliability

Designed for systems requiring improved memory data integrity.

Registered Server Architecture

Suitable for compatible enterprise server platforms using DDR5 RDIMM technology.

2Rx4 Dual-Rank Design

Designed for supported server memory architectures requiring dual-rank x4 DIMMs.

PC5-38400

Provides a theoretical peak bandwidth of approximately 38.4 GB/s per module.

1.1V Operation

Uses the nominal DDR5 operating voltage.

Micron Quality

Manufactured by Micron Technology for professional memory applications.