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Green printed circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 CL19 1.2V 288-pin UDIMM Supermicro MBD-C9Z390CG-IW memory upgrade

SKU CH-BQX4-3Y97W

A 16 GB DDR4 2666 CL19 1.2 V 288-pin UDIMM built for Supermicro MBD-C9Z390CG-IW workstations

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB DDR4 2666 UDIMM expands desktop capacity
  • CL19 1.2 V timing delivers stable throughput
  • 1Rx8 single-rank layout keeps signal integrity clean
  • 288-pin unbuffered design fits Supermicro MBD-C9Z390CG-IW directly
  • Major OEM Samsung Micron Hynix chips ensure reliable operation

Compatible 16 GB DDR4 2666 module

This 16 GB DDR4 2666 CL19 UDIMM is built for the Supermicro MBD-C9Z390CG-IW motherboard. It targets IT professionals and enthusiasts who need a straightforward capacity increase for a supported workstation or desktop. The single-rank 1Rx8 layout uses major-brand DRAM and runs at the standard 1.2 V. Builders requiring ECC or registered memory should look elsewhere.

Standard voltage and unbuffered operation

Operating at 1.2 V with no heat spreader, the module draws only the power defined by the DDR4 2666 specification. Unbuffered, non-ECC design keeps the electrical load light on the memory controller. Typical desktop airflow is sufficient for normal workloads; no active cooling on the DIMM itself is required.

Single stick ready for immediate install

The package contains one 16 GB UDIMM, tested under load before shipment. No additional cables, brackets or software utilities are included. Installation follows the motherboard manual and takes only minutes. The lifetime replacement warranty covers the module itself, not labour or other components.

Highlights

  • 16 GB DDR4 2666 UDIMM expands desktop capacity
  • CL19 1.2 V timing delivers stable throughput
  • 1Rx8 single-rank layout keeps signal integrity clean
  • 288-pin unbuffered design fits Supermicro MBD-C9Z390CG-IW directly
  • Major OEM Samsung Micron Hynix chips ensure reliable operation

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSupermicro DDR4 2666MHZ Non-ECC Unbuffered UDIMM
Part NumberMD21300-618K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSupermicro
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank1Rx8
FeaturesDDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

How do I install this 288-pin DDR4 UDIMM in my Supermicro MBD-C9Z390CG-IW motherboard, and what step do people often get wrong?

Align the notch on the module with the slot key, press down firmly until both retention clips click shut, and verify the system detects 16GB at 2666MHz; the step most often missed is seating the module fully so both clips engage automatically.

What maintenance or replacement will this 16GB 1Rx8 CL19 module need over its service life?

No scheduled maintenance is required; keep the motherboard firmware updated for memory compatibility, and if errors appear run a memory diagnostic — the module itself has no moving parts or consumable components to replace.

What limit appears first when this 1.20V DDR4 2666 memory runs under sustained load?

The primary limit is the fixed CL19 latency at 2666MHz; sustained workloads will hit this timing ceiling before thermal or voltage constraints become significant on an unbuffered UDIMM.

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