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Two green DDR4 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 3200 ECC RDIMM CL22 2Rx4 ASRock EPYCD8-2T memory upgrade

SKU CH-R51X-0SH7X

64 GB dual-channel DDR4 3200 ECC registered kit with CL22 latency for ASRock EPYCD8-2T motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 64GB 2X32GB

  • 64 GB kit doubles server memory capacity for heavier workloads
  • ECC registered design detects and corrects data errors to protect integrity
  • DDR4 3200 speed moves data faster through the memory bus
  • 2 V operation lowers power draw per module
  • 288-pin RDIMM form factor fits the ASRock EPYCD8-2T motherboard slots

Targeted server upgrade

This 64 GB kit delivers two 32 GB DDR4 3200 ECC registered DIMMs built for the ASRock Rack EPYCD8-2T series. It addresses administrators who need to expand memory capacity on qualified server boards without mixing unvalidated modules.

Registered ECC stability

Each module uses a 288-pin RDIMM form factor with a 2Rx4 organisation and operates at 1.2 V. The registered buffer and on-die ECC reduce electrical load on the memory controller and correct single-bit errors, supporting continuous operation in multi-DIMM configurations.

Ready-to-install kit

The package supplies a matched pair of 32 GB sticks under part number MR25600-324K2, eliminating the need to source identical modules separately. Major-brand Samsung, Micron or Hynix ICs ensure consistent quality across the kit for straightforward installation.

How it compares

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

Price $530.99
Typical for this category: the median of 21,161 items is $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 $8.30 per GB
Typical for this category: the median of 20,941 items is $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 RDIMM Registered Server Memory
Part numberMR25600-324K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (2 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

What does the DDR4 3200 PC4-25600 interface cap the transfer rate at?

The DDR4 3200 PC4-25600 interface caps the theoretical maximum transfer rate at 25,600 MB/s.

What physical slot and pin count does this 288-pin RDIMM kit require on the ASRock EPYCD8-2T motherboard?

The kit requires two DDR4 RDIMM slots with 288 pins each on the ASRock EPYCD8-2T motherboard.

How are these ECC registered modules installed, and which step is commonly missed?

Install by aligning the notch on each 288-pin module with the slot key, pressing down firmly until the retention clips click; the step often missed is ensuring both clips lock fully to register the ECC RDIMM correctly.

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