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Green printed circuit board with gold edge contacts and black memory chips in a 288-pin RDIMM form factor

NEMIX RAM

NEMIX RAM 64GB DDR5 6400MHz CL52 2Rx4 1.1V ECC Registered RDIMM memory upgrade

SKU CH-7C6F-XZ3EP

64GB DDR5 6400MHz CL52 2Rx4 1.1V ECC Registered 288-pin RDIMM validated for ASRock Rack GNRAP2D24G-2L+ motherboards

  • Capacity64GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 64GB

Show 4 more configurations
  • 64 GB DDR5 6400 MHz CL52 capacity runs at rated speed
  • Registered ECC 2Rx4 design corrects single-bit errors for production stability
  • 10 V operation matches the server memory controller specification exactly
  • 288-pin RDIMM form factor fits the ASRock Rack GNRAP2D24G-2L+ motherboard
  • Major OEM Samsung Micron Hynix chips deliver enterprise-grade reliability

Exact-match DDR5-6400 RDIMM

This 64GB DDR5 6400MHz module is built as a registered ECC RDIMM for the ASRock Rack GNRAP2D24G-2L+ motherboard. It targets server administrators and integrators who need a validated, single-DIMM upgrade that the board will recognise at its rated speed and full capacity without manual tuning.

Capacity and headroom

The 64GB density and 2Rx4 organisation allow each slot to contribute maximum addressable memory while the registered buffer keeps the memory controller stable when every slot is populated. Systems that require more than the supported slot count or that use unbuffered UDIMMs will not accept this module, so expansion stops at the motherboard’s documented DIMM limit.

CL52 1.1V registered ECC specification

The decisive parameter is the CL52 latency at 1.1V combined with registered ECC operation on a 288-pin DDR5 interface; only motherboards that explicitly support this exact timing, voltage, rank and buffer type will initialise the DIMM at DDR5-6400.

Highlights

  • 64 GB DDR5 6400 MHz CL52 capacity runs at rated speed
  • Registered ECC 2Rx4 design corrects single-bit errors for production stability
  • 10 V operation matches the server memory controller specification exactly
  • 288-pin RDIMM form factor fits the ASRock Rack GNRAP2D24G-2L+ motherboard
  • Major OEM Samsung Micron Hynix chips deliver enterprise-grade reliability

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-924K1
Capacity64GB
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 Content64GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will this 64GB DDR5 6400 CL52 2Rx4 1.1V RDIMM run alongside other DDR5 modules in the ASRock Rack GNRAP2D24G-2L+?

The module is verified for the ASRock Rack GNRAP2D24G-2L+ motherboard. Mixing speeds, ranks, or voltages can prevent the system from running at the rated 6400 speed. Consult the motherboard manual for supported population rules before combining modules.

How can I confirm the 64GB DDR5 6400 CL52 RDIMM is operating at its rated speed after installation?

Enter the system BIOS or UEFI and check the memory information screen. It should report 6400 MT/s (PC5-51200), CL52 latency, 1.1V voltage, and the full 64GB capacity per module with ECC and registered status active.

What is included in the package with the NEMIX RAM 64GB DDR5 6400 RDIMM, and what must be purchased separately?

The package contains one 64GB DDR5 6400MHz PC5-51200 2Rx4 1.1V CL52 288-pin ECC Registered RDIMM. No heat spreader, cables, or additional hardware are included. The compatible ASRock Rack motherboard and any required cooling are separate purchases.

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