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Sixteen green DDR4 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (16x8GB) DDR4 2666 ECC RDIMM CL19 1.2V for Dell PowerEdge R7425

SKU CH-2CS4-3Z5KE

128 GB DDR4 2666 MHz ECC registered server memory kit with sixteen 8 GB modules at CL19 and 1.2 V for Dell PowerEdge R7425

  • Capacity128GB (16 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 128GB 16X8GB

Show 8 more configurations
  • 128 GB total capacity from sixteen 8 GB modules
  • ECC registered design detects and corrects data errors
  • DDR4 2666 MHz speed rated at PC4-21300
  • CL19 latency at 1.20 V operating voltage
  • Validated for Dell PowerEdge R7425 server compatibility

Capacity and configuration

This kit delivers 128GB of DDR4 memory in sixteen 8GB registered DIMMs. It targets administrators scaling Dell PowerEdge R7425 servers for virtualization, databases or high-throughput workloads.

Upgrade path

Replacing smaller or mixed-capacity modules with this uniform 16x8GB kit eliminates population gaps and enables full-channel operation at 2666 MT/s. The jump is worthwhile when the platform demands maximum registered ECC capacity per processor.

Build integration

Each 288-pin RDIMM operates at 1.2V with CL19 timing and 1Rx8 organization. The modules require a server board that supports registered ECC DDR4 and enough free slots for all sixteen sticks; no heat spreaders are fitted.

Highlights

  • 128 GB total capacity from sixteen 8 GB modules
  • ECC registered design detects and corrects data errors
  • DDR4 2666 MHz speed rated at PC4-21300
  • CL19 latency at 1.20 V operating voltage
  • Validated for Dell PowerEdge R7425 server compatibility

Specifications

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-818K16
Capacity128GB (16 x 8GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemDell
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank1Rx8
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (16X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

Will the 288-pin RDIMM modules fit the Dell PowerEdge R7425 memory slots?

Yes, the 288-pin DDR4 RDIMM form factor matches the R7425 DIMM slots exactly.

What is the correct population order for the 16 modules across the two CPU sockets?

Fill each processor's channels symmetrically; the R7425 requires balanced DIMM counts per channel for optimal 2666 MT/s operation.

Do these registered ECC modules require any firmware or BIOS updates before installation?

The R7425 generally supports DDR4 2666 RDIMMs natively; verify the system BIOS is current to ensure full 128 GB recognition.

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