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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB 8x64GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM ASRock Rack GENOA2D16NQM3-2Q memory upgrade

SKU CH-AHA2-EMQWV

512 GB DDR5 server kit with eight 64 GB registered ECC RDIMMs at 6400 MT/s, CL52, 1.1 V, 2Rx4, 288-pin, validated for ASRock Rack GENOA2D16NQM3-2Q

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 8X64GB

Show 4 more
  • 512 GB capacity across eight 64 GB modules for maximum server density
  • DDR5 6400 speed with CL52 latency delivers rated throughput at 1.1 V
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors
  • 2Rx4 dual-rank organisation matches the motherboard population rules exactly
  • 288-pin DDR5 form factor fits the ASRock Rack GENOA2D16NQM3-2Q without adapters

Exact-Match Server Upgrade

This 512GB kit delivers eight 64GB DDR5 6400 RDIMMs at CL52 and 1.1V, built to the precise rank and timing the ASRock Rack GENOA2D16NQM3-2Q expects. The 2Rx4 registered ECC modules populate all slots at rated speed without manual tuning. It is not for systems that require unbuffered UDIMMs or SODIMM form factors.

Replaces Mixed or Smaller Kits

Swapping a partial set of lower-capacity or mismatched-speed DIMMs for this uniform 8x64GB kit restores full-channel bandwidth and eliminates population-rule conflicts. The jump is worth it when the board's qualified-vendor list calls for 2Rx4 registered parts at this exact voltage and latency. It is not for platforms limited to single-rank or 1.2V-only memory.

Sustained Enterprise Stability

Registered buffering offloads the memory controller so every slot runs fully populated under continuous load, while on-die ECC corrects single-bit errors before they reach production workloads. The 1.1V operation keeps thermals predictable during extended runs. It is not for workloads that demand higher-frequency modules or lower-latency timings than CL52.

How it compares

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

Price $17,485.99
Pricier than about 91% 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 $34.15 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 numberMR51200-924K8
Total capacity512 GB (8 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items512 GB 8 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will these 288-pin RDIMM modules fit the DIMM slots on my ASRock Rack GENOA2D16NQM3-2Q motherboard?

Yes, the kit uses the exact 288-pin Registered DDR5 RDIMM form factor that the ASRock Rack GENOA2D16NQM3-2Q requires, so every module seats correctly in the server's DIMM slots.

What is the correct population order when installing all eight 64 GB sticks?

Follow the motherboard manual's approved DIMM population sequence; the board's memory-controller rules dictate which slots must be filled first for full 512 GB recognition at DDR5-6400.

Do the modules need any firmware updates or heat-spreader maintenance over time?

No firmware updates are required for the memory itself, and the modules ship without heat spreaders, so there are no thermal pads or spreader hardware to service later.

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