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Eight green DDR4 UDIMM sticks in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR4 2933 PC4-23400 CL21 288-Pin UDIMM memory upgrade

SKU CH-80JR-685MP

Eight 16 GB DDR4 2933 UDIMM modules totalling 128 GB at CL21 1.20 V for Supermicro workstations

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128GB total capacity with eight 16GB modules
  • DDR4 2933MHz speed rated at PC4-23400
  • CL21 CAS latency for responsive operation
  • 20V low-voltage DDR4 standard efficiency
  • 288-pin UDIMM form factor fits compatible Supermicro systems

System-specific DDR4 kit for Supermicro workstations

This 128 GB kit contains eight 16 GB unbuffered UDIMM modules built for Supermicro desktop and SuperWorkstation platforms. It targets IT professionals and builders who need validated, high-density memory for mission-critical workloads without ECC overhead.

DDR4 2933 PC4-23400 CL21 at 1.20 V

The modules run at DDR4 2933 (PC4-23400) with a CAS latency of CL21 and a standard 1.20 V operating voltage. This speed and timing combination is the single specification that determines whether the kit matches the motherboard's qualified-vendor list for the target Supermicro systems.

Sustained stability through rigorous stress testing

Every module undergoes extended load testing before shipment to verify reliability under continuous enterprise workloads. The 1Rx8 organisation and major OEM DRAM chips help maintain consistent throughput during long rendering, virtualisation or database sessions rather than only in short benchmarks.

How it compares

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

Price $795.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.22 per GB
Cheaper than about 63% 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 2933 MHz Non-ECC Unbuffered UDIMM
Part numberMD23400-618K8
Total capacity128 GB (8 × 16 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
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (8 × 16 GB) DDR4 2933 MHz PC4-23400 1Rx8 1.2 V CL21 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What does the 2933 MHz speed mean once the modules are installed?

The kit runs at DDR4 2933 (PC4-23400) with CL21 latency; the motherboard will set the final data rate and timings based on its memory controller and the number of modules populated.

What does the PC4-23400 rating cap in practice?

PC4-23400 is the JEDEC designation for DDR4 2933; the usable bandwidth is limited by the CPU memory controller, channel count and how many of the eight modules are installed.

What does the 288-pin UDIMM form factor need to fit?

Each 16 GB module is a standard 288-pin DDR4 UDIMM without a heat spreader, so it fits any desktop or workstation board that accepts non-ECC unbuffered DDR4 UDIMMs.

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