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Two green DDR5 RDIMM modules, black chips, no heat spreader, 288-pin edge connectors

NEMIX RAM

NEMIX RAM DDR5 64GB 2x32GB 6400 CL52 1.1V ECC RDIMM 1Rx4 memory upgrade

SKU CH-41T2-GSEZQ

64 GB DDR5 server memory kit with two 32 GB ECC registered DIMMs running at 6400 MT/s, CL52, 1.1 V, validated for the ASRock Rack GNRAPD12DNO motherboard

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

Show 4 more
  • 64 GB total capacity from two 32 GB modules for high-density server workloads
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth for the platform
  • 1 V operation at 1Rx4 rank reduces power draw per DIMM
  • Registered ECC RDIMM architecture enables full-slot population with error correction
  • 288-pin form factor matches the ASRock Rack GNRAPD12DNO motherboard exactly

Exact-match server upgrade

This 64 GB kit contains two 32 GB DDR5 registered ECC RDIMMs built to the precise rank, voltage and timing the ASRock Rack GNRAPD12DNO motherboard expects. The modules are recognised at full capacity and run at their rated 6400 MT/s speed without manual tuning.

DDR5 RDIMM population rules

Registered architecture offloads the memory controller so every slot can run fully populated at full capacity while ECC corrects single-bit errors on the fly. The board's own memory-population rules decide which slots must be filled first and the maximum capacity per channel.

1Rx4 rank and 1.1 V operation

The single-rank-by-four organisation and 1.1 V operating voltage are the decisive specifications that determine whether this kit will initialise at 6400 MT/s on your specific server platform. Systems requiring dual-rank modules or a different voltage will not support this memory.

How it compares

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

Price $2,602.99
Pricier than about 71% 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 $40.67 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 numberMR51200-314K2
Total capacity64 GB (2 × 32 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 rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items64 GB 2 × 32 GB DDR5 6400 MHz PC5-51200 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I pick the 2x32GB kit or a single 64GB module for my ASRock Rack GNRAPD12DNO?

The kit provides two 32GB RDIMMs totalling 64GB, matching the board's dual-channel population rules and ensuring both modules are recognised at the full DDR5 6400 speed with CL52 timing.

What does the DDR5 6400 (PC5-51200) rating actually deliver once installed in the server?

The modules run at 6400 MT/s with a CAS latency of 52 cycles at 1.10V, giving the rated PC5-51200 bandwidth while the registered buffer and ECC keep every slot stable at full capacity.

How does the 288-pin RDIMM interface and registered ECC design limit or enable my memory configuration?

The 288-pin RDIMM form factor is required by the ASRock Rack GNRAPD12DNO; the registered buffer offloads the memory controller so all slots can be fully populated, and ECC corrects single-bit errors on the fly.

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