MICRON MTC40F2047S1RC64BB1 128GB DDR5 6400 RDIMM
The Micron MTC40F2047S1RC64BB1 is a 128GB DDR5 ECC registered DIMM (RDIMM) rated at 6400 MT/s, aimed at system integrators and data center buyers populating current-generation enterprise server platforms. It suits virtualization hosts, cloud computing platforms, AI computing, and high-performance computing workloads where registered modules with on-die error correction are required. Note that DDR5 RDIMMs cannot be mixed with DDR4 or with non-registered DDR5 modules on the same platform, so verify your board’s qualified module list before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | MTC40F2047S1RC64BB1 |
| Brand | Micron |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 128GB |
| Data Rate | 6400 MT/s (may be down-clocked on platforms with lower supported speeds) |
| Speed Grade | PC5-51200R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported (requires ECC-capable platform) |
| CAS Latency | CL52 |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Architecture | x4-based DRAM |
| Data Width | 80-bit (64-bit Data + 8-bit ECC) |
| DRAM Density | 32Gb DDR5 DRAM |
| Compliance | JEDEC DDR5 Standard |
| Memory Bandwidth | 51.2 GB/s (per module, theoretical) |
| Operating Temperature | 0°C to 95°C |
| Applications | Enterprise Servers, Data Centers, Cloud Computing Platforms, AI Computing, and High-Performance Computing Environments |
Good to know
- As an RDIMM, this module is only compatible with server/workstation platforms that explicitly support registered DDR5; it will not fit or function in consumer desktop boards, and mixing RDIMMs with UDIMMs or SODIMMs on the same channel is not supported.
- Within Micron’s DDR5 server lineup, this module sits at the top mainstream data rate of 6400 MT/s with a high 128GB capacity per stick, allowing dense memory population for cache tiers and memory-hungry virtualization hosts without occupying every channel.
- Buying tip: populate memory channels symmetrically according to your server vendor’s population rules (matched capacity, rank, and speed per channel) to achieve rated bandwidth, and confirm the module is on your platform’s QVL before bulk purchase.
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 MTC40F2047S1RC64BB1 is a 128GB DDR5 ECC registered DIMM (RDIMM) rated at 6400 MT/s, aimed at system integrators and data center buyers populating current-generation enterprise server platforms. It suits virtualization hosts, cloud computing platforms, AI computing, and high-performance computing workloads where registered modules with on-die error correction are required. Note that DDR5 RDIMMs cannot be mixed with DDR4 or with non-registered DDR5 modules on the same platform, so verify your board’s qualified module list before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | MTC40F2047S1RC64BB1 |
| Brand | Micron |
| Memory Type | DDR5 ECC RDIMM (Registered DIMM) |
| Capacity | 128GB |
| Data Rate | 6400 MT/s (may be down-clocked on platforms with lower supported speeds) |
| Speed Grade | PC5-51200R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported (requires ECC-capable platform) |
| CAS Latency | CL52 |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Architecture | x4-based DRAM |
| Data Width | 80-bit (64-bit Data + 8-bit ECC) |
| DRAM Density | 32Gb DDR5 DRAM |
| Compliance | JEDEC DDR5 Standard |
| Memory Bandwidth | 51.2 GB/s (per module, theoretical) |
| Operating Temperature | 0°C to 95°C |
| Applications | Enterprise Servers, Data Centers, Cloud Computing Platforms, AI Computing, and High-Performance Computing Environments |
Good to know
- As an RDIMM, this module is only compatible with server/workstation platforms that explicitly support registered DDR5; it will not fit or function in consumer desktop boards, and mixing RDIMMs with UDIMMs or SODIMMs on the same channel is not supported.
- Within Micron’s DDR5 server lineup, this module sits at the top mainstream data rate of 6400 MT/s with a high 128GB capacity per stick, allowing dense memory population for cache tiers and memory-hungry virtualization hosts without occupying every channel.
- Buying tip: populate memory channels symmetrically according to your server vendor’s population rules (matched capacity, rank, and speed per channel) to achieve rated bandwidth, and confirm the module is on your platform’s QVL before bulk purchase.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
