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Eight green DDR5 RDIMM sticks in anti-static packaging

NEMIX RAM

NEMIX RAM DDR5 6400 PC5-51200 512GB 8x64GB CL52 1.1V 2Rx4 288-Pin ECC Registered RDIMM Memory Upgrade

SKU CH-H2MH-EAV0S

Eight 64 GB DDR5 registered ECC RDIMMs deliver 512 GB at 6400 MT/s CL52 1.1 V for ASRock Rack GNRD16DNO and GNRD16QM3-NL servers

  • 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
  • Full 512 GB capacity recognised at DDR5-6400 speed with CL52 timing
  • Registered ECC design corrects single-bit errors to prevent silent data corruption
  • 1 V operation reduces power draw across all eight 64 GB modules
  • 288-pin RDIMM form factor matches ASRock Rack GNRD16DNO and GNRD16QM3-NL slots
  • 2Rx4 organisation enables full population without memory-controller overload

Server Memory Kit

This 512GB kit contains eight 64GB DDR5 RDIMM modules rated at 6400MT/s with CL52 latency and 1.1V operation. It is built for ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards that require registered ECC memory. The 2Rx4 organisation and exact voltage match the platform's memory controller expectations.

Registered ECC Limits

Registered buffering reduces electrical load on the memory controller so all eight slots can run populated at the rated 6400MT/s speed. ECC corrects single-bit errors automatically to prevent silent data corruption. The DDR5 288-pin RDIMM form factor is physically and electrically incompatible with UDIMM or SODIMM slots.

Pre-Purchase Checks

Confirm your motherboard manual lists 64GB 2Rx4 RDIMMs in an eight-module population at DDR5 6400. Verify the approved DIMM installation order for full 512GB capacity. Ensure the system BIOS is updated to a version that supports this density and speed combination before installation.

How it compares

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

Price $15,794.99
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 $30.85 per GB
Pricier than about 88% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

Should I pick the 512GB kit with eight 64GB modules or a different capacity for my ASRock Rack GNRD16DNO?

This kit provides 512GB total using eight 64GB RDIMMs, matching the exact population the board expects for full-capacity operation at DDR5-6400.

What does the DDR5-6400 rating mean when the memory is installed in a GNRD16QM3-NL?

The modules run at 6400 MT/s with CL52 latency at 1.10V, delivering the PC5-51200 bandwidth the motherboard's memory controller is designed for.

How does the 288-pin registered ECC interface affect real-world stability?

Registered buffering reduces electrical load on the controller so all eight slots stay stable at full speed, while ECC corrects single-bit errors on the fly.

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