Micron MTC40F2046S1RC56BD2 64GB DDR5-5600 ECC RDIMM Server Memory
Micron MTC40F2046S1RC56BD2 64GB DDR5-5600 ECC RDIMM Server Memory
Overview
MTC40F2046S1RC56BD2 is a Micron 64GB DDR5 ECC Registered DIMM (RDIMM) rated at 5600 MT/s. It is intended for server and workstation platforms that explicitly support DDR5 registered memory.
Product Positioning
This module is best treated as an exact server-memory part rather than a generic DDR5 RAM replacement. It is particularly relevant for higher-capacity enterprise DDR5 deployments using 5600 MT/s registered memory, including virtualization and data-intensive workloads. In production servers, matching the required DIMM type, capacity, speed, rank organization and platform population rules is more important than choosing memory by capacity alone.
Basic Technical Information
| Manufacturer | Micron |
| Part Number | MTC40F2046S1RC56BD2 |
| Capacity | 64GB |
| Memory Technology | DDR5 SDRAM |
| Module Type | ECC Registered DIMM (RDIMM) |
| Data Rate | 5600 MT/s |
| Rank / Organization | 2Rx4 |
| Voltage | 1.1V |
| Form Factor | 288-pin RDIMM |
| Speed Class | PC5-44800R |
Typical Application Areas
- Enterprise and data-center servers
- Virtualization and private-cloud hosts
- Database, storage and networking systems
- Professional workstations that support DDR5 RDIMM
- Server repair, expansion and qualified spare-parts sourcing
Selection Notes
DDR5 RDIMM is not interchangeable with DDR5 UDIMM or SO-DIMM. Before ordering MTC40F2046S1RC56BD2, verify that the server or workstation supports DDR5 registered ECC memory and check the system vendor's supported capacity, speed, rank and DIMM population rules. When replacing an installed module, matching the original manufacturer part number is the safest starting point.
Related Sourcing Options
For projects where the exact part number is unavailable, SMC can check same-generation DDR5 RDIMM options from Samsung, SK hynix and Micron. Any alternative should be evaluated against the target server platform rather than assumed compatible from capacity and speed alone.
RFQ & Sourcing Support
Contact SMC with the required part number, quantity, target price and server platform. We can check current stock, exact suffix availability and technically relevant DDR5 RDIMM alternatives for production, maintenance and shortage-sourcing projects.
Share

Request Stock & Pricing
Send the required quantity, target price and destination. We will reply with availability, lead time and quotation details.