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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (12x64GB) DDR5 6400 CL52 2Rx4 ECC RDIMM Supermicro H13SST-G memory upgrade

SKU CH-VZG4-56SDA

768GB kit of twelve 64GB DDR5 6400 CL52 2Rx4 ECC registered RDIMMs at 1.1V for Supermicro H13SST-G

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768 GB total capacity from twelve 64 GB modules for maximum server memory density
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth at 1.10 V
  • 2Rx4 Registered ECC architecture offloads the controller and corrects single-bit errors on the fly
  • 288-pin RDIMM form factor matches Supermicro H13SST-G slot and population rules exactly
  • Built with major OEM Samsung, Micron or Hynix DRAM chips for enterprise-grade reliability

Targeted server upgrade

This 768 GB kit contains twelve 64 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.1 V operation. It is built as an exact-match upgrade for the Supermicro H13SST-G motherboard, using registered ECC modules that the platform's memory controller expects for full-capacity recognition.

Thermals and power draw

Registered buffering reduces electrical load on the memory controller, allowing all twelve slots to run populated at the rated 6400 MT/s speed. The modules operate at the standard DDR5 voltage of 1.1 V and carry no heat spreaders, relying on chassis airflow for cooling in typical server environments.

Build integration

The 288-pin RDIMM form factor fits only motherboards that require registered DIMMs; it will not work in UDIMM or SODIMM slots. ECC protection corrects single-bit errors on the fly, preventing silent data corruption, while the 2Rx4 organisation follows the board's population rules for full-capacity operation.

How it compares

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

Price $25,894.99
Pricier than about 92% 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 $33.72 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 numberMR51200-924K12
Total capacity768 GB (12 × 64 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 12 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 12 DDR5 6400 RDIMMs in the Supermicro H13SST-G, and which population order do people often get wrong?

Follow the motherboard manual for the exact slot sequence; the 2Rx4 registered ECC modules must fill the approved channels in the specified order so the controller recognises all 768 GB at 6400 MT/s.

What maintenance or replacement will this 768 GB DDR5 ECC RDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts; under normal server airflow they require no scheduled maintenance, and ECC corrects single-bit errors on the fly.

What limit appears first when the 12x 64 GB DDR5 6400 CL52 kit runs sustained workloads on the H13SST-G?

The memory controller’s maximum supported capacity and population rules cap usable memory before thermal or voltage limits become a factor.

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