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Eight green DDR5 RDIMM modules with black chips and gold contacts arranged in a row

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 128GB (8x16GB) CL40 1.1V 1Rx8 Supermicro H14DST-F memory upgrade

SKU CH-0RH1-G537K

128 GB DDR5 4800 registered ECC RDIMM kit (8 × 16 GB, CL40, 1.1 V) validated for Supermicro H14DST-F servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 8X16GB

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  • 128 GB total capacity from eight 16 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated throughput on Supermicro H14DST-F
  • Registered ECC architecture offloads the controller and corrects single-bit errors in flight
  • 1 V operation at 1Rx8 rank matches the board's memory-controller requirements exactly
  • 288-pin RDIMM form factor fits the H14DST-F slots without adapters or mismatches

Supermicro H14DST-F DDR5 RDIMM kit

This 128GB kit contains eight 16GB DDR5 4800 RDIMM modules built to the Supermicro H14DST-F memory specification. Registered ECC operation with 1Rx8 organisation and 1.10V voltage matches the board's registered-DIMM requirement. The CL40 timing and PC5-38400 data rate are recognised by the memory controller at full population. It is intended for administrators upgrading or fully populating that specific server platform.

Replaces partial or mixed-capacity DDR5 RDIMM sets

When a server runs with fewer than eight slots filled or with modules of differing rank or speed the memory controller often down-clocks or disables ECC. Installing this matched 8x16GB kit restores the rated 4800 MT/s across every channel and keeps registered buffering active. The jump is worth it when the workload demands full-channel bandwidth and single-bit error correction without manual timing tuning.

Eight 16GB modules deliver 128GB total capacity

Fully populated the kit provides 128GB of registered ECC memory for virtualisation hosts, database buffers or large-scale compute jobs. Headroom ends when the application working set exceeds the installed capacity or when the platform's maximum supported memory per socket is reached. No heat spreader is fitted so airflow must meet the chassis design specification.

How it compares

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

Price $3,454.99
Pricier than about 74% 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 $26.99 per GB
Pricier than about 75% 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 Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will these 288-pin DDR5 RDIMMs fit the Supermicro H14DST-F motherboard slots?

Yes, the kit uses the 288-pin DDR5 RDIMM form factor that the H14DST-F requires; it is not a UDIMM or SODIMM, so it matches the board's physical slot layout.

What is the correct installation order for the eight 1Rx8 modules on the H14DST-F?

Populate the DIMM slots in the sequence shown in the Supermicro H14DST-F manual; the board's population rules dictate which channels fill first for eight 1Rx8 registered modules.

Do the modules need any firmware updates or heat-spreader maintenance over time?

No firmware updates are required for the memory itself, and the modules ship without heat spreaders, so there are no spreader clips or thermal pads to service later.

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