MICRON MTC40F2046S1RC56BD2 64GB DDR5 5600 RDIMM
The Micron MTC40F2046S1RC56BD2 is a 64GB DDR5 ECC registered DIMM (RDIMM) running at 5600 MT/s, aimed at enterprise server buyers, system integrators, and data center procurement teams building or expanding current-generation DDR5 platforms. Its dual-rank configuration and ECC protection make it a strong fit for virtualization hosts, cache-tier deployments, and cloud workloads where memory reliability and density matter. Note that this module is DDR5-specific and cannot be mixed with DDR4 RDIMMs in the same platform—confirm your server’s generation before ordering.
Key specifications (table)
| Parameter | Specification |
| Model Number | MTC40F2046S1RC56BD2 |
| Brand | Micron |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 64GB |
| Data Rate | 5600 MT/s |
| Speed Grade | PC5-44800R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL46 |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | 8G x 80 |
| DRAM Architecture | x4-based DRAM |
| Data Width | 80-bit (64-bit Data + 8-bit ECC + parity bits) |
| DRAM Density | 16Gb DDR5 DRAM |
| Compliance | JEDEC DDR5 Standard |
| Memory Bandwidth | 44.8 GB/s |
| Operating Temperature | 0°C to 95°C |
| Applications | Enterprise servers, data centers, cloud computing platforms, virtualization systems, and high-performance computing environments |
Good to know
- As an RDIMM, this module requires a server platform with registered-DIMM support; it will not fit or operate in consumer desktop boards, and DDR5 RDIMMs cannot be combined with DDR4 memory under any configuration.
- The dual-rank (2Rx4) layout generally populates more memory channels efficiently than single-rank modules, which is beneficial when filling a server to high capacities for virtualization or caching workloads—always follow your motherboard vendor’s population order guide.
- Before checkout, verify the exact speed support of your CPU and board: systems rated below 5600 MT/s will run this module at their maximum supported rate, so match the speed grade to your platform’s qualified memory list (QVL).
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Micron MTC40F2046S1RC56BD2 is a 64GB DDR5 ECC registered DIMM (RDIMM) running at 5600 MT/s, aimed at enterprise server buyers, system integrators, and data center procurement teams building or expanding current-generation DDR5 platforms. Its dual-rank configuration and ECC protection make it a strong fit for virtualization hosts, cache-tier deployments, and cloud workloads where memory reliability and density matter. Note that this module is DDR5-specific and cannot be mixed with DDR4 RDIMMs in the same platform—confirm your server’s generation before ordering.
Key specifications (table)
| Parameter | Specification |
| Model Number | MTC40F2046S1RC56BD2 |
| Brand | Micron |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 64GB |
| Data Rate | 5600 MT/s |
| Speed Grade | PC5-44800R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL46 |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | 8G x 80 |
| DRAM Architecture | x4-based DRAM |
| Data Width | 80-bit (64-bit Data + 8-bit ECC + parity bits) |
| DRAM Density | 16Gb DDR5 DRAM |
| Compliance | JEDEC DDR5 Standard |
| Memory Bandwidth | 44.8 GB/s |
| Operating Temperature | 0°C to 95°C |
| Applications | Enterprise servers, data centers, cloud computing platforms, virtualization systems, and high-performance computing environments |
Good to know
- As an RDIMM, this module requires a server platform with registered-DIMM support; it will not fit or operate in consumer desktop boards, and DDR5 RDIMMs cannot be combined with DDR4 memory under any configuration.
- The dual-rank (2Rx4) layout generally populates more memory channels efficiently than single-rank modules, which is beneficial when filling a server to high capacities for virtualization or caching workloads—always follow your motherboard vendor’s population order guide.
- Before checkout, verify the exact speed support of your CPU and board: systems rated below 5600 MT/s will run this module at their maximum supported rate, so match the speed grade to your platform’s qualified memory list (QVL).
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
