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Green circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 CL19 288-Pin UDIMM SuperMicro MBD-C9Z390-CG memory upgrade

SKU CH-1SHN-J3768

An 8 GB DDR4 2666 CL19 UDIMM built for the SuperMicro MBD-C9Z390-CG workstation board

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 8 GB capacity adds responsive multitasking headroom for daily workloads
  • DDR4 2666 speed moves data quickly through compatible Supermicro boards
  • CL19 latency keeps timing tight for stable operation
  • 2 V low voltage reduces power draw and heat output
  • 288-pin UDIMM form factor fits standard desktop DIMM slots directly

System-Specific DDR4 Upgrade

This 8 GB DDR4 2666 module is built for the SuperMicro MBD-C9Z390-CG motherboard. It arrives as a single 288-pin UDIMM rated at 1.20 V with CL19 latency. The stick uses major OEM chips and is tested for stability in that platform.

Compatibility Focused Buyers

The kit suits anyone upgrading or repairing that exact SuperMicro board who wants a validated, non-ECC unbuffered DIMM. It is not for systems requiring ECC or registered memory, nor for boards limited to lower DDR4 speeds or different pin counts.

Pre-Install Checks

Confirm the motherboard has a free DDR4 UDIMM slot and that the BIOS recognises 2666 MT/s modules at 1.20 V. Verify the board accepts 1Rx8 density and non-ECC operation before ordering. Consult the manual for population rules.

How it compares

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

Price $46.99
Cheaper than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.87 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSupermicro DDR4 2666 MHz Non-ECC Unbuffered UDIMM
Part numberMD21300-818K1
Total capacity8 GB
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items8 GB (1 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

Does this 8 GB DDR4 2666 CL19 UDIMM require a SuperMicro MBD-C9Z390-CG motherboard to work?

Yes, it is built for that specific board and will only function in systems that accept 288-pin DDR4 unbuffered non-ECC modules at 1.2 V.

Can I mix this CL19 2666 MHz module with slower DDR4 sticks already in my system?

The motherboard will run all installed memory at the speed and timings of the slowest module, so faster sticks simply down-clock to match.

How can I confirm the module is recognised at 2666 MHz with CL19 timings after installation?

Check the BIOS memory information screen or a tool such as CPU-Z; it should report DDR4-2666, CAS 19 and 1.2 V operation.

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