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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 384GB 12x32GB ECC RDIMM Supermicro H14SSF memory upgrade

SKU CH-7X7J-FNJWF

384 GB server memory kit with twelve 32 GB DDR5-4800 ECC registered DIMMs for the Supermicro H14SSF motherboard

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 384GB 12X32GB

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  • 384GB total capacity from twelve 32GB modules
  • DDR5 4800 speed with CL40 latency for rated performance
  • ECC registered design corrects single-bit errors automatically
  • 10V operation matches server memory controller requirements
  • Verified fitment for Supermicro H14SSF motherboard

Server Memory Upgrade

This 384GB kit contains twelve 32GB DDR5 4800 RDIMM modules built for the Supermicro H14SSF motherboard. Registered ECC architecture with 2Rx8 organisation and CL40 latency at 1.1V matches the board's memory controller requirements for full-capacity operation.

Capacity Expansion

The kit replaces smaller or mixed-capacity DIMM sets to populate all twelve slots with identical 32GB modules. This uniform population avoids rank-mismatch limits and lets the memory controller run every channel at the rated DDR5 4800 speed without down-clocking.

DDR5 RDIMM Constraints

Registered DDR5 modules only fit 288-pin RDIMM slots; they cannot be used in UDIMM or SODIMM sockets. The 2Rx8 rank structure and 1.1V operation must be supported by the motherboard's qualified-vendor list for the system to initialise at full capacity.

How it compares

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

Price $9,765.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $25.43 per GB
Pricier 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 Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-328K12
Total capacity384 GB (12 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items384 GB 12 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 288-pin RDIMM modules fit the Supermicro H14SSF motherboard slots?

Yes, the kit uses the 288-pin Registered RDIMM form factor that the H14SSF requires; it is not a UDIMM or SODIMM, so the modules seat directly in the board's DDR5 DIMM slots.

What is the correct installation order for the 12 modules on the H14SSF?

Populate the slots in the sequence specified by the Supermicro H14SSF manual — typically filling one DIMM per channel first — so the memory controller recognises all 12 modules at DDR5-4800.

Do the modules need active cooling or heat-spreader replacement over time?

The modules ship without heat spreaders and run at the standard 1.1 V; normal server chassis airflow is sufficient, so no extra cooling or spreader replacement is required.

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