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Four green DDR4 RDIMM modules, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2666 ECC RDIMM CL19 memory upgrade

SKU CH-Y6R5-6NVP2

A 128 GB registered ECC DDR4-2666 quad-channel kit of four 32 GB modules at CL19 and 1.2 V for ASRock EPYC server boards

  • 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

  • 128GB total capacity from four 32GB modules
  • DDR4 2666 speed with PC4-21300 bandwidth
  • ECC registered design protects data integrity
  • 2V operation reduces power consumption
  • Validated for ASRock ROMED8-2T EPYC motherboards

128GB DDR4 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR4 2666 registered DIMMs built for the ASRock ROMED8-2T motherboard and AMD EPYC server platforms. Each module runs at 1.2V with CL19 latency and uses 2Rx4 organisation. The ECC registered design targets data integrity in mission-critical workloads.

Check DDR4 RDIMM slot count and CPU support

Verify that your ROMED8-2T board has four free 288-pin DDR4 slots and that the installed EPYC processor supports 2666MHz registered ECC memory at 1.2V. Confirm the system BIOS is current enough to initialise a 128GB quad-channel population. No heat spreaders are fitted, so ensure chassis airflow covers bare modules.

Suits EPYC server builds needing maximum

Ideal for administrators expanding an ASRock ROMED8-2T system to 128GB with validated ECC RDIMM modules. Not suited for desktop consumer boards that accept only unbuffered UDIMM memory, for platforms limited to lower densities per slot, or for workloads requiring faster DDR4 speeds or DDR5 technology.

How it compares

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

Price $749.99
Pricier than about 57% 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 $5.86 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock 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 systemsASRock
In the box
Included items128 GB (4 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx4 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

Does the kit include only the four 32 GB modules or are any cables or brackets supplied?

The package contains the four 32 GB DDR4 2666 ECC RDIMM modules and nothing else; no cables, brackets or tools are included.

Should I choose this 128 GB quad-rank kit or a smaller capacity for my ASRock ROMED8-2T?

Select the 128 GB (4 x 32 GB) kit when you need maximum registered ECC capacity on the EPYC platform; smaller kits are available if fewer slots are populated.

What does the 2666 MT/s rating mean once the modules are installed in the server?

The memory will run at 2666 MT/s with CL19 latency at 1.2 V, delivering PC4-21300 bandwidth on the compatible ASRock motherboard.

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