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Green bare circuit board DDR5 RDIMM module 288-pin no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 2Rx4 ECC RDIMM ASRock Rack GNR2D16-2T memory upgrade

SKU CH-DSNQ-2Q660

128 GB DDR5-6400 ECC registered RDIMM with CL52 latency and 1.1 V operation, validated for the ASRock Rack GNR2D16-2T motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

Show 4 more
  • 128 GB capacity lets you fully populate supported slots for maximum server memory density
  • DDR5-6400 speed with CL52 latency delivers the rated throughput your controller expects
  • Registered ECC architecture offloads the memory controller and corrects single-bit errors on the fly
  • 1 V operating voltage matches the board specification for stable full-population operation
  • Verified fit for ASRock Rack GNR2D16-2T with 288-pin RDIMM form factor and 2Rx4 rank

128 GB DDR5 ECC RDIMM for ASRock Rack

This NEMIX RAM module delivers 128 GB of DDR5 registered ECC memory rated at 6400 MT/s with CL52 latency and 1.10 V operation. It uses a 2Rx4 organization and 288-pin RDIMM form factor built with major OEM DRAM chips. The kit is verified for the ASRock Rack GNR2D16-2T motherboard.

Who should buy this and who should not

Server administrators populating the GNR2D16-2T with the exact registered ECC specification the board expects will get full-capacity recognition and error correction. Builders needing unbuffered UDIMMs, SODIMMs, non-ECC modules, or a different speed, voltage, or rank configuration cannot use this part.

Registered ECC with 2Rx4 rank

The 2Rx4 registered ECC architecture is the single specification that determines compatibility. The memory controller on the target motherboard requires this exact rank structure and buffering type to initialize at rated speed and capacity.

How it compares

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

Price $4,528.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.38 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 numberMR51200-724K1
Total capacity128 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 items128 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

How can I verify the memory is running at DDR5 6400 with CL52 after installation?

Enter the BIOS or UEFI and confirm the memory speed reads 6400 MT/s and the CAS latency shows 52. The registered ECC design also lets the system log corrected errors, which you can review in the OS event viewer to confirm ECC is active.

What does the kit contain and do I need any extra parts?

The kit includes one 128 GB 288-pin DDR5 RDIMM module rated at 1.1 V. No heat spreader, cables or additional components are supplied; the motherboard slot provides all required power and signalling.

Which capacity or version should I choose for the ASRock Rack GNR2D16-2T?

This specific part number MR51200-724K1 is the exact-match 128 GB 2Rx4 registered ECC RDIMM validated for the GNR2D16-2T at DDR5 6400. Select this version when you need the full 128 GB per DIMM slot.

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