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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC RDIMM CL19 1.2V 288-pin memory upgrade

SKU CH-5SV3-ZS8X4

16 GB DDR4 2666 ECC registered DIMM with CL19 latency for ASRock EPYC server boards

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 16GB

  • 16 GB DDR4 capacity scales server workloads
  • ECC registered design protects data integrity
  • 2666 MT/s speed with CL19 latency
  • 2 V operation reduces power draw
  • 288-pin RDIMM fits ASRock EPYC motherboards

Server-grade DDR4 ECC RDIMM

This 16 GB registered module runs at DDR4 2666 with CL19 latency and 1.2 V operation. It targets ASRock Rack ROMED8-2T platforms built around AMD EPYC processors where error-correcting memory is required.

Verify registered DIMM support and slot population

Confirm the motherboard accepts registered ECC RDIMMs and check the manual for approved slot order before purchase. The module uses a 2Rx8 organisation, so total rank count per channel must stay within the platform limit.

Major-brand DRAM chips without heat spreader

Samsung, Micron or Hynix ICs are used on a bare green PCB that fits standard 288-pin DDR4 sockets. The low-profile design eases clearance in dense server chassis and allows unrestricted airflow across adjacent modules.

Highlights

  • 16 GB DDR4 capacity scales server workloads
  • ECC registered design protects data integrity
  • 2666 MT/s speed with CL19 latency
  • 2 V operation reduces power draw
  • 288-pin RDIMM fits ASRock EPYC motherboards

Specifications

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx8
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory

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Questions about this item

Does the 16GB DDR4 2666 ECC RDIMM arrive as a single 16GB stick or as multiple modules?

The module ships as one 16GB DDR4 2666 RDIMM, so no additional sticks are required for this capacity

Should I choose the CL19 1.20V 2Rx8 version or a different latency and rank configuration for the ASRock Rack ROMED8-2T?

The listed CL19 1.20V 2Rx8 specification matches the motherboard's qualified memory profile for AMD EPYC platforms

What does the 2666 MT/s rating mean once the RDIMM is installed in the ASRock server board?

The memory will operate at 2666 MT/s with CL19 timing at 1.20V, delivering the rated PC4-21300 bandwidth in the EPYC system

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