We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Eight green DDR4 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR4 2666 ECC RDIMM CL19 1.2V 288-pin memory upgrade

SKU CH-1MFE-0WQ8Y

Eight 16 GB DDR4 2666 ECC registered DIMMs deliver 128 GB at 1.2 V with CL19 latency for ASRock Rack EPYC boards

  • 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

  • 128 GB total capacity across 8 modules of 16 GB each
  • DDR4 2666 speed rated at PC4-21300 for server workloads
  • ECC registered RDIMM design protects data integrity in critical systems
  • Low 1.2 V operation reduces power draw in dense configurations
  • Validated for ASRock Rack ROMED8-2T with AMD EPYC processors

128GB ECC RDIMM Kit for ASRock EPYC Servers

This kit supplies 128GB of DDR4 2666 registered memory in eight 16GB modules. It is built for ASRock Rack ROMED8-2T motherboards running AMD EPYC processors where error-correcting code and registered buffering are required for stability.

Verify DIMM Slots and BIOS Revision

Confirm the motherboard has eight free 288-pin DDR4 slots and that the BIOS version supports 2Rx8 registered modules at PC4-21300 speed. The kit operates at 1.2V with CL19 latency, so the platform must accept that voltage and timing without manual adjustment.

Registered ECC Modules for Multi-Socket Density

Each module is a 2Rx8 registered DIMM without heat spreaders, allowing tight spacing in multi-socket server chassis. The registered buffer reduces electrical load on the memory controller, freeing the CPU to address the full 128GB capacity across all populated channels.

How it compares

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

Price $833.99
Pricier than about 58% 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 $6.52 per GB
Cheaper than about 60% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock 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 systemsASRock
In the box
Included items128 GB (8 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 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

Does the 128GB kit include only the eight 16GB modules or are any extra parts supplied?

The package contains the eight 16GB DDR4 2666 ECC registered DIMMs and nothing else.

How do I decide between this 128GB 2666MHz CL19 kit and a different capacity or speed if both are listed?

Choose this kit when the system requires eight registered 2Rx8 modules at 1.2V for a total of 128GB; other capacities or speeds will have different part numbers.

What does the 2666MHz rating mean for actual throughput once the modules are installed in a compatible server?

The modules run at the DDR4 2666 data rate with CL19 latency, delivering the standard bandwidth for that speed class in a registered ECC configuration.

More in Model-Specific Memory Upgrades

Similar items