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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 6400 CL52 1.1V 2Rx8 ECC RDIMM H14SSF memory upgrade

SKU CH-ESMM-SGCKV

Eight 32 GB DDR5 registered ECC RDIMMs running at 6400 MT/s CL52 1.1 V, validated for full-capacity population on Supermicro H14SSF motherboards

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from eight 32 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC design corrects single-bit errors automatically
  • 2Rx8 dual-rank layout enables full-slot population
  • 288-pin RDIMM form factor matches Supermicro H14SSF requirements

Supermicro H14SSF DDR5 6400 ECC RDIMM kit

This 256GB kit contains eight 32GB DDR5 6400 registered ECC RDIMMs built for the Supermicro H14SSF motherboard. It targets administrators who need maximum capacity in every slot without mixing ranks or voltages. The modules deliver 1.1V operation and CL52 latency exactly as the board expects.

288-pin RDIMM installation and population rules

Each module uses the 288-pin RDIMM form factor required by the H14SSF, so it seats in the standard server DIMM slots. The board’s memory-population order must be followed; installing modules in the wrong sequence or leaving gaps will prevent the system from recognising the full 256GB. Verify the manual before seating all eight sticks.

256GB registered ECC capacity and headroom

Eight dual-rank 32GB modules fill every slot on the H14SSF, giving the full 256GB the platform supports at DDR5 6400. Registered buffering keeps the memory controller stable when all channels are fully populated, and ECC corrects single-bit errors on the fly. Workloads that exceed 256GB or require faster speeds will need a different platform.

How it compares

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

Price $10,452.99
Pricier than about 88% 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 $40.83 per GB
Pricier than about 90% 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 numberMR51200-328K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 8 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How can I confirm the 256GB kit is running at DDR5 6400 CL52 after installation?

Check the BIOS or UEFI memory information screen — it should report 6400 MT/s, CAS latency 52, 1.1 V and all eight 32 GB modules as Registered ECC.

What comes in the box and is anything else required?

The package contains the eight 32 GB DDR5 288-pin RDIMM modules only; no heat spreaders, cables or tools are included and nothing else is needed for installation.

Which capacity kit should I choose for a fully populated Supermicro H14SSF?

This 256 GB (8 × 32 GB) kit fills every DIMM slot on the H14SSF, matching the board's population rules for maximum supported capacity.

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