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Sixteen green DDR4 LRDIMM sticks in a row

NEMIX RAM

NEMIX RAM 1TB (16x64GB) DDR4 2666MHz ECC LRDIMM Dell PowerEdge R7425 memory upgrade

SKU CH-RXWC-P236Y

A 1TB server memory kit containing sixteen 64GB DDR4 2666MHz ECC LRDIMM modules at CL19 latency for Dell PowerEdge R7425 systems

  • Total capacity1 TB (16 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V

Capacity 1TB 16X64GB

Show 8 more
  • 1TB total capacity from 16 x 64GB modules
  • ECC Load Reduced design protects data integrity under load
  • DDR4 2666MHz speed rated at PC4-21300
  • 2V operation with CL19 latency
  • Built for Dell PowerEdge R7425 server compatibility

Server memory kit

This NEMIX RAM kit delivers 1TB of DDR4 ECC LRDIMM capacity across sixteen 64GB modules. It is built for IT professionals upgrading a Dell EMC PowerEdge R7425 server that requires registered load-reduced memory.

Thermals and power

Each module operates at 1.2V with no heat spreader, relying on the server chassis airflow for cooling. The load-reduced design reduces electrical load on the memory bus, helping to keep power draw predictable under sustained workloads.

Deciding specification

The kit uses a 4Rx4 organisation with CL19 latency at 2666MHz, a combination that must match the platform memory configuration rules. Buyers whose systems require a different rank structure or latency will not be able to use this kit.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $3,830.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (16 × 64 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $3.83 per GB
Cheaper than about 85% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 2666 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML21300-944K16
Total capacity1 TB (16 × 64 GB)
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items1 TB (16 × 64 GB) DDR4 2666 MHz PC4-21300 4Rx4 1.2 V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory

Other versions of this model

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Questions about this item

How do I install the 16 modules of 288-pin DDR4 LRDIMM into the PowerEdge R7425, and what step is often missed?

Power down the server, open the chassis, populate all 16 slots following the R7425 memory population guide, then run the BIOS memory configuration utility so the 4Rx4 ranks are recognised.

What maintenance or replacement will this 1TB kit need over its service life?

The modules have no heat spreaders and are sealed; no user-serviceable parts exist. If a stick fails, replace the individual 64GB LRDIMM with an identical 2666MHz CL19 4Rx4 part.

What limit appears first when the kit runs sustained workloads at 2666MHz?

The 4Rx4 organisation and CL19 latency cap sustained throughput; the memory controller will hit rank-density bandwidth limits before thermal throttling occurs at 1.20V.

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