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Six green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 768GB 6x128GB 6400MHz CL52 1.1V ECC RDIMM Supermicro H13DSG-OM

SKU CH-7J7T-8KJ1P

A 768 GB DDR5 ECC registered memory kit of six 128 GB modules at 6400 MHz CL52, validated for the Supermicro H13DSG-OM motherboard

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768GB capacity across 6 modules for dense server workloads
  • DDR5 6400 speed with CL52 latency for rated performance
  • 1V registered ECC design reduces controller load and corrects errors
  • 2Rx4 288-pin RDIMM form factor matches Supermicro H13DSG-OM requirements
  • Major OEM Samsung, Micron or Hynix chips for enterprise-grade stability

Capacity and Compatibility

This kit delivers 768GB of DDR5 server memory across six 128GB RDIMM modules. It is built to the exact specifications required by the Supermicro H13DSG-OM motherboard, ensuring full-capacity recognition and rated-speed operation without manual tuning.

Fitment and Limitations

The registered ECC design suits administrators who need maximum density and error correction on this specific platform. Builders using consumer motherboards, workstations requiring UDIMMs, or systems that cannot accept 2Rx4 registered modules should select a different memory type.

Build Integration

Each 288-pin module operates at 1.1V with CL52 latency at DDR5-6400, matching the board's native voltage and timing tables. The registered architecture reduces electrical load on the memory controller when all slots are populated, while on-die ECC protects data integrity without consuming additional system resources.

How it compares

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

Price $28,875.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $37.60 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 numberMR51200-724K6
Total capacity768 GB (6 × 128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 6 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What motherboard must I already own for this 768GB DDR5 6400MHz RDIMM kit to work?

This kit is verified for the Supermicro H13DSG-OM motherboard. It requires that specific board with DDR5 RDIMM slots supporting 128GB 2Rx4 modules at 1.1V.

Will these 128GB 2Rx4 modules run with smaller DDR5 RDIMMs I keep in other slots?

Mixing capacities or ranks is not recommended. The board's memory population rules require identical modules per channel for stable operation at 6400MHz.

How do I confirm the full 768GB is recognised at 6400MHz CL52 after install?

Check BIOS memory info or OS tools for 768GB total, 6400MT/s speed, CL52 timings, and ECC active on all six DIMMs.

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