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Green PCB 288-pin DDR5 RDIMM module with black heatspreader and silver label

Micron Technology, Inc.

Micron Technology, Inc. MTC40F2047S1RC56BB2R 128GB DDR5 RDIMM 5600 CL46 server RAM

SKU CH-VTNV-SHQVZ MPN MTC40F2047S1RC56BB2R

128 GB DDR5 RDIMM with ECC, dual-rank 2Rx4 organisation, running at 5600 MHz CL46

  • Capacity128GB
  • Type288-Pin PC RAM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS LatencyCL46
  • 128 GB capacity supports large-scale virtualisation and in-memory databases
  • DDR5 5600 MT/s delivers 44800 MB/s peak bandwidth for data-intensive workloads
  • CL46 CAS latency provides responsive timing for consistent server performance
  • Dual-rank 2Rx4 organisation with 32 Gbit density maximises DIMM capacity per slot
  • ECC registered RDIMM form factor ensures signal integrity and error correction in multi-DIMM configurations

Micron 128GB DDR5-5600 RDIMM

This Micron DDR5 registered DIMM delivers 128GB of ECC server memory in a single module. It runs at 5600MHz with CL46 latency and uses a 2Rx4 dual-rank organisation based on 32Gbit DRAM. The 288-pin form factor fits standard DDR5 RDIMM slots in compatible platforms.

Installation notes for registered ECC modules

Installation requires a motherboard that supports DDR5 RDIMM with ECC; the module will not function in desktop UDIMM slots or systems lacking registered-buffer support. Align the key notch with the slot, press firmly until the retention clips engage, and verify the BIOS detects the full 128GB capacity. Dual-rank density can limit the number of modules per channel on some server boards.

Suited for memory-heavy server workloads

The 128GB capacity and ECC protection suit virtualisation hosts, database nodes and compute clusters that need maximum density per slot. Environments requiring registered DDR5 but lower per-module capacity or higher speed bins should evaluate alternative modules. Systems without DDR5 RDIMM support cannot use this product.

Highlights

  • 128 GB capacity supports large-scale virtualisation and in-memory databases
  • DDR5 5600 MT/s delivers 44800 MB/s peak bandwidth for data-intensive workloads
  • CL46 CAS latency provides responsive timing for consistent server performance
  • Dual-rank 2Rx4 organisation with 32 Gbit density maximises DIMM capacity per slot
  • ECC registered RDIMM form factor ensures signal integrity and error correction in multi-DIMM configurations

Specifications

BrandMicron
Part NumberMTC40F2047S1RC56BB2R
Capacity128GB
Type288-Pin PC RAM
SpeedDDR5 5600 (PC5 44800)
CAS LatencyCL46
Shipping weight0.45 kg
Package size152 × 102 × 25 mm

Questions about this item

How can I verify the module is running at 5600 MT/s with CL46 after installation?

Enter the server BIOS or UEFI and confirm the memory speed reads 5600 MT/s and CAS latency shows CL46; the module is a 128 GB DDR5 RDIMM with 2Rx4 organisation.

What ships with the MTC40F2047S1RC56BB2R and what must be sourced separately?

The box contains one 128 GB DDR5 5600 CL46 RDIMM in a 288-pin form factor; additional modules, a compatible DDR5 server platform and any required cooling are not included.

Which capacity and rank option should I choose for a dual-rank 128 GB DDR5 5600 CL46 configuration?

This single part number MTC40F2047S1RC56BB2R delivers exactly 128 GB in a 2Rx4 dual-rank layout at 5600 MT/s CL46; select it when that specification matches your platform's qualified-vendor list.

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