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Eight green DDR4 RDIMM modules in a clear plastic tray

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR4 2666 PC4-21300 ECC RDIMM CL19 1.2V 288-Pin Dell PowerEdge R7425 memory upgrade

SKU CH-BMHM-PY9CP

Eight 16 GB DDR4 ECC registered DIMMs at 2666 MHz CL19 for Dell PowerEdge R7425

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 128GB 8X16GB

Show 8 more
  • 128 GB total capacity from eight 16 GB modules
  • DDR4 2666 speed rated at PC4-21300 bandwidth
  • ECC registered design protects data integrity under load
  • CL19 latency at 1.2 V operating voltage
  • 288-pin RDIMM form factor built for Dell PowerEdge R7425

Dell PowerEdge R7425 server upgrade

This 128GB kit contains eight 16GB DDR4 2666 registered DIMMs built for the Dell EMC PowerEdge R7425. It targets administrators who need to expand memory capacity in that specific platform.

ECC RDIMM modules with major OEM chips

Each module uses Samsung, Micron or Hynix components and operates at 1.2V with CL19 latency. The registered design and on-die ECC protect data integrity under continuous server workloads.

288-pin DDR4 2666 registered form factor

The kit only fits systems that accept DDR4 RDIMMs at this speed and pin count. Buyers with platforms requiring UDIMMs, LRDIMMs or a different DDR generation cannot use these modules.

How it compares

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

Price $903.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.06 per GB
Cheaper than about 57% 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 numberMR21300-628K8
Total capacity128 GB (8 × 16 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 rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (8 × 16 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

5 more in the same range

Questions about this item

Will the 8 modules need any firmware updates or thermal-pad replacements during their service life?

No firmware updates or thermal-pad changes are required; the 288-pin RDIMMs run at 1.2 V without heat spreaders and are validated for the R7425 platform.

What is the first bottleneck that appears when the 128 GB kit runs at 2666 MT/s continuously?

The CL19 latency at DDR4-2666 sets the timing ceiling before bandwidth or capacity limits are reached.

How much heat and power does the 8×16 GB registered kit produce under all-day load?

Each 16 GB module operates at 1.20 V without a heat spreader, so total power draw and thermal output stay low even at sustained 2666 MT/s operation.

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