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Four green DDR4 UDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB 4X32GB DDR4 2933MHz PC4-23400 CL21 1.2V 2Rx8 UDIMM memory upgrade

SKU CH-QB87-20GVZ

A 128 GB kit of four 32 GB DDR4 2933 MHz CL21 1.2 V 2Rx8 UDIMM modules verified for Supermicro X12SAE and X12SCA-F motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules for large workloads
  • DDR4-2933 (PC4-23400) speed matches the board's rated frequency
  • CL21 latency at 1.20 V delivers stable operation
  • 2Rx8 unbuffered UDIMM form factor fits Supermicro X12SAE and X12SCA-F motherboards
  • Built with Samsung, Micron or Hynix chips and tested at rated specifications

Exact-match DDR4 kit for Supermicro

This 128 GB kit delivers four 32 GB DDR4-2933 UDIMM modules rated at CL21 and 1.20 V. The 2Rx8 rank structure and 288-pin unbuffered design match the memory controller expectations of the Supermicro X12SAE and X12SCA-F motherboards so the full capacity is recognised at rated speed.

Major OEM chips tested at spec

Modules are built with Samsung Micron or Hynix components and validated for stability at the stated frequency timing and voltage. The kit contains only the four DIMMs with no heat spreaders or additional accessories included.

Suits Supermicro desktop board upgrades

Builders expanding a compatible Supermicro X12SAE or X12SCA-F system to 128 GB will find this kit drops in without configuration changes. It is not suitable for servers requiring ECC or registered DIMMs nor for platforms limited to lower densities or different DDR generations.

How it compares

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

Price $709.99
Pricier than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.55 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 Non-ECC Unbuffered UDIMM Memory
Part numberMD23400-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR4 2933 MHz PC4-23400 2Rx8 1.2 V 288-PIN Non-ECC UDIMM KIT

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Questions about this item

Will the 288-pin DDR4 UDIMM modules need a heat spreader added later?

The modules ship without a heat spreader. Standard case airflow is sufficient for 1.2 V DDR4-2933 CL21 operation; no aftermarket cooling is required.

What limit appears first during sustained load on the 2Rx8 32 GB sticks?

The memory controller's maximum supported capacity and ranked-DIMM population rules cap usable memory before bandwidth or thermal limits are reached.

How much power and heat does the 128 GB kit produce running all day?

At 1.20 V the four modules draw minimal power and generate little heat; typical desktop airflow keeps temperatures well within DDR4 operating range.

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