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Four green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2666 ECC RDIMM Dell R7425

SKU CH-RVF6-8M2G8

A 128 GB registered DDR4 kit of four 32 GB ECC modules at 2666 MHz CL19, validated for Dell PowerEdge R7425 servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 128GB 4X32GB

Show 8 more
  • 128 GB capacity with four 32 GB modules for large workloads
  • DDR4 2666 speed rated PC4-21300 for high throughput
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces server power draw
  • Validated for Dell PowerEdge R7425 compatibility

128GB DDR4 2666 ECC RDIMM kit

This NEMIX RAM kit provides 128GB of DDR4 memory across four 32GB registered DIMMs. It runs at 2666MHz with CL19 latency and 1.2V operation. ECC error correction and registered buffering protect data integrity in server workloads. The modules are validated for Dell EMC PowerEdge R7425 systems.

Suited for Dell R7425 capacity upgrades

Administrators expanding a compatible PowerEdge R7425 to 128GB will find the correct speed, voltage and rank configuration here. Buyers needing a different capacity, speed grade or non-ECC modules should look at other kits. Systems that require unbuffered UDIMMs or a 288-pin form factor with a different pin-out cannot use this memory.

Registered ECC RDIMM with 2Rx4 organisation

The decisive specification is the registered ECC RDIMM design with 2Rx4 rank organisation. Only motherboards that accept registered DDR4 ECC DIMMs can use this kit. Consumer desktop boards and laptops that require unbuffered memory will not post with these modules installed.

How it compares

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

Price $798.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.24 per GB
Cheaper than about 63% 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 RDIMM Registered Server Memory
Part numberMR21300-324K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (4 × 32 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

Should I choose the 128GB kit or a smaller capacity for my Dell PowerEdge R7425?

The 128GB kit provides four 32GB modules filling four slots; select a smaller kit only if you need fewer slots or less total memory.

What does the 2666MHz speed mean for actual server performance?

The modules run at DDR4 2666 (PC4-21300) with CL19 latency, delivering the rated throughput when the R7425 memory controller operates at that frequency.

Is the 288-pin RDIMM interface compatible with standard DDR4 slots in the R7425?

Yes, the 288-pin ECC Registered RDIMM design matches the Dell PowerEdge R7425 memory slots and is qualified for that platform.

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