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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 768GB 12x64GB 4800MHz CL40 2Rx4 1.1V 288-pin memory upgrade

SKU CH-9A55-BTCJH

A 768GB DDR5 ECC RDIMM kit of 12 modules at 4800MHz CL40 1.1V 288-pin, verified for the Supermicro H14DSG-OM motherboard

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 12X64GB

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  • 768 GB total capacity from twelve 64 GB modules for high-density server workloads
  • DDR5-4800 CL40 at 1.10 V delivers rated speed with low power draw
  • Registered ECC with 2Rx4 organisation offloads the memory controller and corrects single-bit errors
  • 288-pin RDIMM form factor matches Supermicro H14DSG-OM slot requirements exactly
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise-grade reliability

Exact-match upgrade kit

This 768GB kit contains twelve 64GB DDR5 RDIMMs rated at 4800MHz PC5-38400 with CL40 timing and 1.1V operation. Registered ECC architecture with 2Rx4 organisation meets the precise rank, voltage and timing requirements of the Supermicro H14DSG-OM motherboard so the memory controller recognises full capacity at rated speed. It is built for administrators who need validated, high-density server memory without manual tuning.

Registered ECC form factor

The 288-pin RDIMM modules use registered buffering to reduce electrical load on the memory controller, allowing all twelve slots to be populated at full capacity. ECC circuitry detects and corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots in production environments. Builders must follow the motherboard manual for supported capacities, approved population order and installation steps before adding this kit.

Sustained enterprise stability

Major OEM Samsung, Micron or Hynix DRAM chips deliver consistent throughput under continuous multi-threaded workloads rather than short burst performance. Registered buffering maintains signal integrity across a fully populated chassis, while ECC protection operates continuously during extended compute tasks. Systems requiring UDIMM, SODIMM or non-ECC memory cannot use this kit.

How it compares

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

Price $21,428.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.90 per GB
Pricier than about 78% 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 numberMR38400-924K12
Total capacity768 GB (12 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 12 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 1.1V operating voltage stay stable when all 12 slots are populated on the Supermicro H14DSG-OM?

The kit runs at 1.10V per module; registered buffering keeps each DIMM at spec even with every slot filled.

How much heat do the bare modules produce during continuous server workloads?

Without heat spreaders the 2Rx4 DDR5 chips rely on chassis airflow; registered design reduces electrical load per pin.

Does the H14DSG-OM require a specific BIOS revision or CPU stepping to recognise the full 768GB kit?

The board must support 64GB 2Rx4 registered DDR5-4800 modules; consult the Supermicro manual for population rules.

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