Specifications
MPN
MTC40F2047S1RC56BR
Capacity
128 GB
Type
DDR5 RDIMM (Registered)
Speed
DDR5-5600 / PC5-44800
Rank / Organization
2Rx4
Pins
288-pin
ECC
Yes
Voltage
1.1 V
Base Device
32Gb DDR5 SDRAM
Module Family
MTC40F2047S1RC
Standards
JEDEC DDR5
Form
Low profile RDIMM
Micron high-density DDR5 RDIMM
| MPN | Capacity | Speed | Rank |
|---|---|---|---|
| MTC40F204WS1RC64BB2 | 96 GB | DDR5-6400 | 2Rx4 |
| MTC40F2047S1RC56BR | 128 GB | DDR5-5600 | 2Rx4 |
| MTC40F204WS1RC56B | 96 GB | DDR5-5600 | 2Rx4 |
| MTC40F204WS1RC48BB1 | 96 GB | DDR5-4800 | 2Rx4 |
Use Case
128GB RDIMMs reduce the module count needed to reach a target capacity, which simplifies platform planning and lowers the number of failure points per TB of memory. They are the standard choice for large virtualisation hosts and for CPU-side KV-cache and embedding stores in retrieval-augmented inference pipelines.
Need Micron 128GB DDR5-5600 ECC RDIMM?
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