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Two green circuit boards with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM ME23400-818K2 16GB 2x8GB DDR4 2933 ECC UDIMM memory upgrade

SKU CH-F1DX-C5ASF

16 GB DDR4 2933 MHz ECC UDIMM kit with 1.2 V CL21 timing for Supermicro X12SCZ motherboards

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 16GB 2X8GB

  • ECC protects data integrity by correcting single-bit errors on the fly
  • Exact-match DDR4-2933 kit runs at rated speed with CL21 timing and 1.2V
  • Verified fit for Supermicro X12SCZ-F and X12SCZ-TLN4F motherboards
  • 16GB dual-channel capacity from two 8GB 1Rx8 unbuffered UDIMMs
  • Lifetime replacement warranty with free US-based technical support

Targeted DDR4 ECC upgrade

This 16 GB kit contains two 8 GB DDR4 2933 modules built to the exact rank, voltage and timing the Supermicro X12SCZ-F and X12SCZ-TLN4F memory controllers expect. The 288-pin unbuffered ECC UDIMM form factor matches the board's population rules so the full capacity is recognised at rated speed without manual tuning.

Sustained data integrity

On-board ECC detects and corrects single-bit errors during continuous operation, preventing silent corruption that can accumulate in long-running workloads. The 1.2 V, CL21 modules maintain their specified throughput without throttling when the system is under constant memory pressure.

Cool, quiet, efficient operation

Bare modules without heat spreaders rely on the chassis airflow already present in Supermicro platforms, adding no audible noise. Each DIMM draws only 1.20 V at standard DDR4 power levels, keeping the thermal contribution low even when all slots are populated.

How it compares

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

Price $127.99
Cheaper than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $8.00 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME23400-818K2
Total capacity16 GB (2 × 8 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items16 GB 2 × 8 GB DDR4 2933 MHz PC4-23400 1Rx8 1.2 V 288-PIN ECC UDIMM KIT

Other versions of this model

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Questions about this item

Does the 1.2 V rating keep power draw and heat low during continuous operation?

Yes — the modules run at 1.20 V standard DDR4 voltage, so they draw minimal power and generate little heat even under all-day workloads.

Must the motherboard be a Supermicro X12SCZ-F or X12SCZ-TLN4F with 288-pin DDR4 ECC UDIMM slots?

The kit is validated for those exact boards; other systems need 288-pin DDR4 ECC UDIMM slots and must support 2933 MT/s, CL21, 1Rx8 unbuffered modules.

Will the CL21 timing work with slower DDR4 ECC UDIMMs already installed?

The memory controller will run all populated slots at the lowest common speed and latency, so slower modules will dictate the final timing.

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