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Eight green DDR5 RDIMM modules in antistatic tray

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 8x32GB ECC RDIMM CL52 1.1V Supermicro H14SST-GE

SKU CH-FF6E-0Z96V

Eight-module kit adds 256 GB of registered DDR5 ECC memory at 6400 MT/s with CL52 timing and 1.1 V operation for Supermicro H14SST-GE servers

  • 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 enables large-memory workloads
  • DDR5 6400 speed with CL52 latency delivers rated throughput for the platform
  • Registered ECC architecture corrects single-bit errors and buffers signals for full-slot stability
  • 1 V operation matches the server memory controller specification exactly
  • 288-pin RDIMM form factor fits the Supermicro H14SST-GE motherboard slots

256 GB DDR5-6400 ECC RDIMM kit for Supermicro

This 256 GB kit contains eight 32 GB DDR5-6400 registered ECC modules built to the exact rank, voltage and timing the Supermicro H14SST-GE memory controller expects. The 2Rx8 organisation and 1.10 V operation let the board recognise full capacity and run at the rated 6400 MT/s speed without manual tuning.

Registered buffer and on-die ECC

Registered architecture offloads the memory controller so all eight slots stay stable when fully populated, while ECC corrects single-bit errors on the fly to prevent silent data corruption and unexpected reboots in production workloads. The modules ship without heat spreaders, matching the board's standard airflow design.

Suits Supermicro H14SST-GE servers needing maximum

Builders populating every DIMM slot on this specific motherboard get guaranteed compatibility and full-speed operation. Buyers with different Supermicro models, consumer boards or systems that require unbuffered UDIMMs should verify their platform's qualified vendor list before ordering.

How it compares

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

Price $10,288.99
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 $40.19 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

Will the eight 32GB RDIMMs need any firmware updates or thermal-pad replacements later?

No firmware or thermal pads are mentioned; the modules have no heat spreaders and run at the standard 1.10V DDR5 voltage, so routine maintenance is limited to keeping server airflow clean.

What limit appears first when the 256GB kit runs at DDR5-6400 CL52 continuously?

The memory controller on the Supermicro H14SST-GE will hit its maximum supported capacity or rank-per-channel limit before the RDIMMs themselves throttle, because registered ECC modules are designed for sustained full-load operation.

How much noise and heat do the registered ECC modules generate under all-day load?

With no onboard heat spreaders and a low 1.10V operating voltage, the RDIMMs add minimal heat and no audible noise; total thermal load is handled by the server's existing fan wall.

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