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Eight green DDR4 LRDIMM sticks with black chips in a row

NEMIX RAM

NEMIX RAM 512GB 8x64GB DDR4 3200 PC4-25600 4Rx4 1.2V CL22 288-Pin ECC LRDIMM ASRock EPYCD8-2T memory upgrade

SKU CH-KAPF-VD265

Eight 64 GB DDR4 LRDIMM modules deliver 512 GB of ECC load-reduced memory at 3200 MT/s for the ASRock EPYCD8-2T

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V

Capacity 512GB 8X64GB

  • 512 GB total capacity for dense server workloads
  • 8 × 64 GB modules populate all DIMM slots
  • DDR4 3200 speed with PC4-25600 bandwidth
  • ECC LRDIMM 4Rx4 design reduces electrical load on the memory bus
  • 2 V operation lowers power draw per module

512 GB DDR4 LRDIMM kit for ASRock EPYCD8-2T

This 512 GB kit contains eight 64 GB DDR4 3200 LRDIMM modules built for the ASRock Rack EPYCD8-2T motherboard. Each module runs at 1.2 V with CL22 latency and uses a 4Rx4 load-reduced ECC design. The 288-pin form factor matches the server board's memory slots exactly.

Fits eight DIMM slots

Load-reduced modules place less electrical load on the memory controller than standard registered DIMMs, allowing all eight slots to be populated at 3200 MT/s. ECC protection corrects single-bit errors in flight, which is essential for continuous server operation. The kit arrives as a matched set so the firmware trains all ranks together without manual tuning.

Replaces smaller or mixed-capacity DDR4 kits

Upgrading from a partial populate or mixed-rank configuration removes bandwidth bottlenecks and eliminates rank-margin errors that appear under sustained load. The jump is worth it when the workload demands full 512 GB capacity with ECC integrity at the board's rated 3200 MT/s speed. Buyers who need a different motherboard or a non-ECC platform cannot use this kit.

How it compares

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

Price $3,840.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML25600-944K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items512 GB (8 × 64 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

Other versions of this model

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Questions about this item

Does the 1.20 V operating voltage limit headroom when the ASRock Rack EPYCD8-2T runs at full load continuously?

The modules are rated at 1.20 V and CL22; the motherboard controls voltage under sustained load, so headroom depends on the platform's power management.

How much heat do the eight 4Rx4 LRDIMMs generate during all-day operation?

Each 64 GB module is a load-reduced ECC DDR4 DIMM without a heat spreader, so thermal output follows the 1.20 V specification and chassis airflow.

What must the ASRock Rack EPYCD8-2T already have populated to accept this 512 GB kit?

The board needs eight free 288-pin DDR4 LRDIMM slots and a CPU that supports 4Rx4 load-reduced ECC memory at 3200 MT/s.

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