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Six green 288-pin DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 768GB 6x128GB DDR5 6400 CL52 1.1V 2Rx4 RDIMM ECC Server Memory Upgrade

SKU CH-C43P-P8DYD

A 768 GB kit of six 128 GB DDR5 6400 CL52 1.1 V 2Rx4 registered ECC RDIMMs validated for the Supermicro H13SSL-N 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
  • 768 GB total capacity with six 128 GB modules for maximum memory density
  • DDR5 6400 speed (PC5-51200) at CL52 latency for high-throughput server workloads
  • Registered ECC RDIMM design with 2Rx4 organisation corrects single-bit errors and stabilises fully populated slots
  • 1 V operating voltage matches platform spec for efficient power draw
  • Validated for Supermicro H13SSL-N motherboard ensuring correct fit and population rules

Exact-match server upgrade

This 768 GB kit contains six 128 GB DDR5 6400 RDIMM modules built to the precise rank, voltage and timing the Supermicro H13SSL-N motherboard expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors on the fly.

Build integration

The 288-pin registered form factor fits only boards wired for RDIMMs; it will not work in UDIMM or SODIMM slots. Populating all six channels offloads the memory controller and enables the full 768 GB capacity without down-clocking.

Capacity and headroom

Six dual-rank 128 GB modules deliver 768 GB at CL52 and 1.10 V, suited for virtualisation hosts, large databases and memory-bound analytics. Workloads that exceed this capacity or require a different DIMM type will need a platform change.

How it compares

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

Price $25,624.99
Pricier than about 92% 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 $33.37 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

Will the CL52 latency hold when all six 128 GB modules run continuously at 6400 MT/s?

Yes, the kit is spec‑matched at CL52 for the full 768 GB population on the Supermicro H13SSL-N, so the rated timing is maintained under sustained load.

How much heat and power should I expect from a fully populated 768 GB kit running 24/7?

Each module operates at 1.10 V without a heat spreader; registered DDR5 architecture keeps per‑DIMM power low, and typical server airflow handles the thermal load without extra cooling.

Does my Supermicro H13SSL-N need a specific BIOS revision or CPU to recognise all 768 GB?

The motherboard must support 128 GB 2Rx4 registered DDR5 DIMMs and the correct population order; consult the H13SSL-N manual for the required BIOS version and approved CPU list before installing.

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