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Two green 288-pin DDR4 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2933 CL21 ECC RDIMM memory upgrade

SKU CH-1B3N-SC851

64 GB dual-rank DDR4 ECC RDIMM kit running at 2933 MHz CL21 for ASRock Rack EPYCD8-2T servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 64GB 2X32GB

  • 64 GB kit expands server memory capacity
  • DDR4 2933 MT/s speed supports demanding workloads
  • ECC registered design protects data integrity
  • 2 V operation reduces power consumption
  • 2Rx4 dual-rank layout optimises bandwidth

64GB DDR4 ECC RDIMM kit

This 64GB kit contains two 32GB DDR4 2933 registered DIMMs with ECC and CL21 latency. It is built for servers and workstations that require error-correcting registered memory running at 1.2V. The modules use major OEM chips from Samsung, Micron or Hynix and carry the part number MR23400-324K2.

Check motherboard RDIMM support

Verify that your system accepts 288-pin DDR4 registered DIMMs and supports a 2Rx4 rank configuration at 2933 MT/s. The board must be compatible with ECC registered memory and able to operate at 1.20V. Consult the motherboard manual for maximum capacity per slot and approved memory population rules before ordering.

Upgrade from non-ECC or lower capacity

This kit replaces standard unbuffered memory or smaller registered kits in compatible ASRock Rack EPYCD8-2T series motherboards. The jump is worth it when workloads demand data integrity through ECC and the higher density of 32GB modules. Systems limited to unbuffered DIMMs or lower speeds cannot use this registered kit.

How it compares

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

Price $565.99
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 $8.84 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 2933 MHz ECC RDIMM Registered Server Memory
Part numberMR23400-324K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
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 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

Does the kit include only the two 32 GB modules or any extra parts?

The package contains the 64 GB kit as two 32 GB DDR4 2933 CL21 ECC RDIMM modules and nothing else.

Why choose the 64 GB 2Rx4 kit instead of a lower capacity option?

This 2 x 32 GB kit delivers 64 GB total with dual-rank 2Rx4 organisation, matching the ASRock Rack EPYCD8-2T memory slots for maximum supported capacity.

What does the 2933 MT/s rating mean once the modules are installed in the server?

The memory runs at DDR4 2933 (PC4-23400) with CL21 latency at 1.20 V, providing registered ECC bandwidth for the compatible ASRock Rack platform.

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