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Two green DDR5 RDIMM modules with black chips no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC RDIMM K14PA-U12 memory upgrade

SKU CH-23AA-41464

A 64 GB dual-channel DDR5 ECC registered kit validated for ASUS K14PA-U12 servers running 128-core AMD EPYC 9004 CPUs

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity supports demanding server workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design protects data integrity in critical environments
  • 1 V operation reduces power consumption per module
  • Validated for ASUS K14PA-U12 with 128-core AMD EPYC 9004

ASUS K14PA-U12 DDR5 4800 ECC RDIMM kit

This 64GB dual-channel kit delivers registered DDR5 memory for the ASUS K14PA-U12 server motherboard. It is built for 128-core AMD EPYC 9004 platforms that require ECC integrity and registered signal buffering. The modules operate at 1.10V with CL40 latency. Buyers needing consumer DIMMs or non-ECC memory should look elsewhere.

64GB capacity with 1Rx4 organisation

Two 32GB modules provide 64GB total capacity in a 1Rx4 layout running at DDR5 4800 (PC5-38400). The registered design reduces electrical load on the memory controller, allowing stable operation in high-density server configurations. Workloads exceeding 64GB per channel will require additional DIMM slots or higher-density modules not included here.

Passive thermals at 1.10V operation

Modules ship without heat spreaders, relying on chassis airflow for cooling at the standard 1.10V DDR5 voltage. Registered buffering and ECC logic add minimal power overhead compared with unbuffered equivalents. Systems with restricted airflow or overclocked memory profiles may see higher thermals than this kit is designed to handle.

How it compares

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

Price $1,915.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.94 per GB
Pricier than about 85% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-314K2
Total capacity64 GB (2 × 32 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
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 288-pin DDR5 4800 RDIMM modules install in my ASUS K14PA-U12 alongside existing memory?

The kit is validated for the ASUS K14PA-U12 with AMD EPYC 9004 CPUs. Populate empty DIMM slots following the motherboard’s population rules; mixed ranks or speeds will run at the lowest common settings.

How can I verify the 1Rx4 ECC registered modules are running at CL40 1.10 V after installation?

Enter the BIOS or use a tool such as dmidecode to confirm each 32 GB module reports DDR5-4800, CL40, 1.10 V and ECC active.

Does the package include only the two 32 GB RDIMMs or are heat spreaders and cables also supplied?

The box contains the 64 GB (2 × 32 GB) DDR5 4800 CL40 ECC RDIMM kit only; no heat spreaders, cables or additional accessories are included.

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