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Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR4 2666 PC4-21300 CL19 1Rx8 1.2V 288-Pin UDIMM SuperMicro MBD-C9Z390-CG

SKU CH-J5AV-BPA20

64GB kit of four 16GB DDR4 2666 UDIMM modules, CL19 1.2V, validated for SuperMicro MBD-C9Z390-CG workstations

  • Capacity64GB (4 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 64 GB kit expands workstation memory for heavy workloads
  • Four 16 GB modules populate all slots on the SuperMicro MBD-C9Z390-CG
  • DDR4 2666 PC4-21300 speed matches board specification
  • CL19 latency at 1.2 V keeps power draw low
  • Unbuffered non-ECC UDIMM design ensures direct compatibility

Capacity and fit

This 64 GB kit contains four 16 GB DDR4 UDIMMs rated at 2666 MT/s (PC4-21300) with CL19 timing at 1.2 V. The modules are 1Rx8 unbuffered non-ECC and carry no heat spreaders. They are built specifically for the SuperMicro MBD-C9Z390-CG workstation motherboard.

Before ordering

Confirm that your motherboard is the exact SuperMicro MBD-C9Z390-CG model; other boards may not support this configuration. Verify the CPU and chipset accept 2666 MT/s DDR4 unbuffered non-ECC UDIMMs at 1.2 V. Ensure four free 288-pin DIMM slots are available and that the BIOS is updated to the version recommended by SuperMicro for 64 GB population.

Build integration

The kit fills all four slots on the target board, delivering the maximum supported density without mixing ranks. Standard 1.2 V operation keeps power draw low and leaves headroom for the CPU and add-in cards. No additional cooling is required for the bare modules, and the unbuffered design imposes no extra load on the memory controller.

Highlights

  • 64 GB kit expands workstation memory for heavy workloads
  • Four 16 GB modules populate all slots on the SuperMicro MBD-C9Z390-CG
  • DDR4 2666 PC4-21300 speed matches board specification
  • CL19 latency at 1.2 V keeps power draw low
  • Unbuffered non-ECC UDIMM design ensures direct compatibility

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSupermicro DDR4 2666MHZ Non-ECC Unbuffered UDIMM
Part NumberMD21300-618K4
Capacity64GB (4 x 16GB)
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 Content64GB (4X16GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What comes in the kit and do I need to buy anything else to install it?

The kit contains four 16 GB DDR4 UDIMM modules for a total of 64 GB. No extra parts are required; the modules plug directly into the motherboard's 288-pin slots.

Why choose the 4 x 16 GB CL19 2666 MHz version over a different capacity or speed?

This 64 GB kit matches the SuperMicro MBD-C9Z390-CG's supported DDR4 2666 specification and fills four slots with 1Rx8 modules at 1.20 V for stable operation.

What does the PC4-21300 rating mean once the memory is running in my workstation?

PC4-21300 indicates a peak transfer rate of 21 300 MB/s at 2666 MHz, which is the maximum bandwidth the board's memory controller can use with these CL19 modules.

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