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Eight green DDR4 UDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR4 2933 PC4-23400 CL21 1.2V 2Rx8 288-Pin UDIMM Kit

SKU CH-7X1S-QHRFQ

Eight 32 GB DDR4 2933 UDIMM modules deliver 256 GB of unbuffered non-ECC memory for compatible Supermicro systems

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 256 GB total capacity from eight 32 GB modules
  • DDR4 2933 MT/s rated speed for high-throughput workloads
  • 20 V operating voltage for efficient power use
  • CL21 CAS latency with 2Rx8 dual-rank organisation
  • Validated for Supermicro 5039AD-I and C9X299-PGF workstations

SuperMicro Compatible 256GB Kit

This NEMIX RAM kit delivers 256GB across eight 32GB DDR4 UDIMM modules built for SuperMicro desktop and SuperWorkstation platforms such as the 5039AD-I and MBD-C9X299-PGF. The 2933 MT/s PC4-23400 speed and CL21 latency suit memory-intensive workloads on supported workstations. It is not for systems that require ECC or registered DIMMs.

Tool-less DIMM Installation

Each 288-pin unbuffered module installs directly into standard DDR4 slots without additional hardware or cables. Align the notch, press until the latches click, and the firmware detects the 2Rx8 organisation automatically. Builders who need registered or load-reduced memory cannot use this kit.

Sustained Load Stability

Modules are stress tested under load at 1.20V to maintain timing consistency during extended compute sessions. The absence of a heat spreader means airflow across the PCB manages thermals in densely populated SuperMicro chassis. Systems without adequate case ventilation may see higher sustained temperatures.

How it compares

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

Price $1,431.99
Pricier than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.59 per GB
Cheaper than about 69% 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 numberMD23400-328K8
Total capacity256 GB (8 × 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
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (8 × 32 GB) DDR4 2933 MHz PC4-23400 2Rx8 1.2 V CL21 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

How can I verify the kit is running at 2933 MT/s after installation?

Open the system BIOS or use a tool such as CPU-Z to confirm the memory frequency reads 2933 and the timings show CL21 at 1.2 V.

What exactly ships in the box and is anything else required?

The package contains eight 32 GB DDR4 UDIMM modules for a total of 256 GB; no extra cables, brackets or software are needed.

Which capacity option should I pick for a SuperMicro board that supports 256 GB maximum?

Choose this 256 GB (8 x 32 GB) kit to fully populate the board and reach its supported memory limit.

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