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NEMIX RAM

NEMIX RAM 768GB 12x64GB DDR5 6400 CL52 2Rx4 RDIMM Kit ASRock Rack GNRAP2D24G-2L+

SKU CH-X9ZX-AKC0K

12-module 768 GB DDR5 6400 CL52 2Rx4 registered ECC kit built for the ASRock Rack GNRAP2D24G-2L+ motherboard

  • 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 12 matched 64 GB modules for high-density server workloads
  • DDR5 6400 speed with CL52 latency delivers rated throughput for the ASRock Rack GNRAP2D2D24G-2L+
  • Registered ECC architecture offloads the memory controller and corrects single-bit errors on the fly
  • 10 V operating voltage and 2Rx4 organisation match the board's memory-controller expectations exactly
  • 288-pin RDIMM form factor fits the required slots and supports full population per motherboard rules

768GB DDR5-6400 RDIMM Kit

This 768GB kit contains twelve 64GB DDR5-6400 Registered ECC RDIMMs built for the ASRock Rack GNRAP2D24G-2L+ motherboard. The modules run at 1.1V with CL52 latency and a 2Rx4 rank structure that matches the board's memory controller requirements. It is intended for administrators who need the full 768GB capacity recognised at rated speed without manual tuning.

Registered ECC Stability

The registered architecture buffers address and command signals so all twelve slots can remain fully populated at DDR5-6400 without overloading the memory controller. ECC detects and corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots during sustained workloads. This combination keeps throughput consistent across long-running server tasks.

2Rx4 Rank Configuration

Each DIMM uses a 2Rx4 organisation, a detail the memory controller expects for correct population and full-capacity operation. Using modules with a different rank layout would prevent the system from recognising the full 768GB or running at the rated 6400 MT/s. Buyers who need a different rank structure or a lower total capacity should select another kit.

How it compares

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

Price $25,777.99
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 $33.57 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 systemsASRock Rack
In the box
Included items768 GB 12 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How much power does the 1.10 V DDR5 6400 kit draw when the server runs all day?

Each module operates at 1.10 V, the standard DDR5 voltage, so total power scales with the 12 x 64 GB population; the registered design reduces electrical load on the memory controller.

What motherboard slot and population rules does the ASRock Rack GNRAP2D24G-2L+ require for this 12-module kit?

The board uses 288-pin RDIMM slots; consult its manual for the exact population order and maximum supported capacity before installing all twelve modules.

Will these 2Rx4 registered ECC modules work alongside older DDR5 RDIMMs I already own?

Mixing ranks, speeds or vendors is not recommended; the kit is validated as a matched 12 x 64 GB set for the ASRock Rack platform to ensure stability at 6400 MT/s.

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