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Two green DDR5 RDIMM modules, bare circuit boards with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 192GB (2x96GB) DDR5 6400 CL52 2Rx4 ECC RDIMM ASRock Rack GNRAPD12DNO memory upgrade

SKU CH-9RX3-5F4X0

192 GB DDR5-6400 ECC registered server memory kit with two 96 GB modules at CL52, 1.1 V, 2Rx4, 288-pin, validated for ASRock Rack GNRAPD12DNO

  • Total capacity192 GB (2 × 96 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 192GB 2X96GB

Show 4 more
  • 192GB total capacity from two 96GB modules
  • DDR5 6400 speed with CL52 latency at 1.10V
  • Registered ECC RDIMM for enterprise stability
  • 2Rx4 dual-rank organisation per module
  • 288-pin form factor matched to ASRock Rack GNRAPD12DNO

Exact-match server upgrade

This 192 GB kit contains two 96 GB DDR5 6400 RDIMMs built to the ASRock Rack GNRAPD12DNO memory-controller specification. Registered ECC with 2Rx4 organisation and CL52 latency at 1.1 V ensures the board recognises full capacity and runs at rated speed without manual tuning.

Straightforward slot installation

Align the 288-pin RDIMM key notch with the motherboard slot and press until the ejector clips latch automatically. The registered buffer reduces electrical load so all slots can be populated, but the manual must be consulted for the approved population order; skipping that step is the most common reason modules are not detected at full capacity.

Registered ECC with 2Rx4 rank

The single specification that decides fitment is the 2Rx4 registered ECC organisation at DDR5 6400 CL52 1.1 V. Systems that require unbuffered UDIMMs, different rank layouts, or non-ECC memory will not accept this kit.

How it compares

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

Price $5,204.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 192 GB (2 × 96 GB)
Higher than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $27.11 per GB
Pricier than about 75% 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 numberMR51200-9624K2
Total capacity192 GB (2 × 96 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 items192 GB 2 × 96 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I confirm the kit is running at DDR5 6400 CL52 after installation?

Enter the system BIOS or UEFI and verify the memory speed shows 6400 MT/s with CAS latency 52; the registered ECC modules should also report 192 GB total capacity and 1.1 V operation.

What does the package contain and is anything else required?

The box includes two 96 GB DDR5 6400 CL52 2Rx4 registered ECC RDIMMs for a total of 192 GB; no additional parts are needed for installation on the compatible ASRock Rack GNRAPD12DNO motherboard.

Which capacity option should I choose for this server board?

This listing provides the exact-match 192 GB kit (2 × 96 GB) validated for the ASRock Rack GNRAPD12DNO; select this kit when your configuration calls for the full 192 GB registered ECC capacity.

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