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Four green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 6400 CL52 2Rx4 ECC Registered RDIMM ASRock Rack GNRAP2D24G-2L+ memory upgrade

SKU CH-21KY-AA9GT

A 512 GB kit of four 128 GB DDR5 6400 CL52 2Rx4 ECC registered RDIMMs at 1.1 V, validated for the ASRock Rack GNRAP2D24G-2L+ motherboard

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 512GB 4X128GB

Show 4 more configurations
  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency at 1.10 V
  • Registered ECC architecture for error correction and stability
  • 288-pin RDIMM form factor matched to ASRock Rack board
  • Built with major OEM Samsung, Micron or Hynix chips

Exact-Match Server Memory Kit

This 512GB kit contains four 128GB DDR5 Registered ECC RDIMMs built to the precise rank, voltage and timing the ASRock Rack GNRAP2D24G-2L+ motherboard expects. It arrives new and is ready for immediate installation in compatible systems.

Build Integration Requirements

The 288-pin RDIMM form factor fits only motherboards designed for Registered DDR5 memory, not UDIMM or SODIMM slots. Registered buffering offloads the memory controller so every slot can run fully populated at the rated 6400 speed, while ECC corrects single-bit errors on the fly.

Suited For Stable Capacity Needs

Ideal for administrators who need the full 512GB capacity at DDR5-6400 with verified fitment on the specified ASRock Rack board. Not for buyers who need heat spreaders, lower CAS latency, non-ECC modules, or a different pin count or voltage than the 1.1V 288-pin specification.

Highlights

  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency at 1.10 V
  • Registered ECC architecture for error correction and stability
  • 288-pin RDIMM form factor matched to ASRock Rack board
  • Built with major OEM Samsung, Micron or Hynix chips

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-724K4
Capacity512GB (4 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemASRock Rack
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content512GB 4X128GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the CL52 latency hold when all four 128 GB modules run at 6400 MT/s continuously?

The kit is rated DDR5-6400 CL52 at 1.10 V with 2Rx4 registered ECC; sustained operation at those timings is the validated specification.

How much heat and power should I expect from the four 1.10 V RDIMMs under full load?

Each module runs at 1.10 V with no heat spreader; registered buffering reduces controller load, so total power scales with the 512 GB capacity at the rated voltage.

Does the ASRock Rack GNRAP2D24G-2L+ require a specific DIMM population order for this 4 x 128 GB kit?

The board's memory-population rules determine slot order; consult the motherboard manual for the approved installation sequence before fitting all four RDIMMs.

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