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Sixteen green DDR4 RDIMM modules in a static-safe tray

NEMIX RAM

NEMIX RAM 512GB (16x32GB) DDR4 2666 PC4-21300 ECC RDIMM for Dell PowerEdge R7425 memory upgrade

SKU CH-MFKY-PKGQ1

A 512 GB registered ECC DDR4 kit with sixteen 32 GB modules running at 2666 MT/s and CL19 latency for Dell PowerEdge R7425 servers

  • Total capacity512 GB (16 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 512GB 16X32GB

Show 8 more
  • 512 GB total capacity from 16 matched 32 GB modules
  • DDR4 2666 speed rated at PC4-21300 for server workloads
  • ECC registered RDIMM design protects data integrity
  • 2 V operation with CL19 latency for efficient performance
  • Validated for Dell EMC PowerEdge R7425 systems

Dell PowerEdge R7425 512GB kit

This 512GB kit contains sixteen 32GB DDR4 2666 registered ECC RDIMMs built for the Dell PowerEdge R7425 server. Modules run at 1.2V with CL19 latency and use 288-pin 2Rx4 organisation for stable operation in enterprise workloads.

Suited for R7425 memory expansion

IT teams scaling virtualisation, database or analytics capacity on a PowerEdge R7425 will match the factory-qualified speed and rank layout. Buyers needing a different capacity, speed or form factor should select a kit that matches their platform's qualified vendor list.

Fills sixteen DIMM slots at 2666 MT/s

The kit occupies all sixteen DDR4 slots on the R7425 motherboard, delivering the maximum supported density at the platform's native 2666 MT/s rate. Registered buffering and ECC free the memory controller from single-bit errors while maintaining signal integrity across the full population.

How it compares

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

Price $2,842.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (16 × 32 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.55 per GB
Cheaper than about 70% 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 numberMR21300-324K16
Total capacity512 GB (16 × 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 items512 GB (16 × 32 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Other versions of this model

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Questions about this item

Does my Dell PowerEdge R7425 need to support DDR4 2666 ECC registered RDIMMs for this 512GB kit to work?

Yes, the server must accept DDR4 2666 PC4-21300 ECC registered 288-pin RDIMMs at 1.2V with CL19 timing; the R7425 meets those requirements.

Can I keep any existing 2666 MT/s DDR4 ECC RDIMMs installed while adding these sixteen 32GB modules?

The kit fills all sixteen slots with matched 2Rx4 modules, so any older DIMMs would need to be removed; mixing ranks or speeds can prevent the server from posting.

How do I confirm the full 512GB is recognised and running at 2666 MT/s with ECC active after installation?

Enter the BIOS or iDRAC and verify the memory summary shows 512GB total, 2666 MT/s speed, ECC enabled, and all sixteen DIMMs present without errors.

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