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Two green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB 2x64GB DDR5 6400MHz CL52 1.1V 2Rx4 ECC RDIMM memory upgrade

SKU CH-GAG3-RR1TN

128 GB DDR5 6400 MHz ECC RDIMM kit with 2Rx4 registered stability for ASRock Rack GNRD16DNO and GNRD16QM3-NL servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 4 more
  • Full 128 GB capacity recognised at rated DDR5 6400 speed
  • Registered ECC design corrects single-bit errors to prevent data corruption
  • Exact 2Rx4 rank and 1.1 V voltage match the motherboard memory controller
  • 288-pin RDIMM form factor fits ASRock Rack GNRD16DNO / GNRD16QM3-NL boards
  • CL52 CAS latency delivers specified timing for stable server operation

Exact DDR5-6400 ECC RDIMM kit for ASRock Rack

This 128GB kit delivers two 64GB DDR5-6400 Registered ECC modules built to the 2Rx4, 1.1V, CL52 specification that ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards require. The registered architecture and on-die ECC protect data integrity in continuously running workloads.

Standard 288-pin RDIMM installation

Modules seat in the server's 288-pin DDR5 slots using the usual keyed alignment. The board's manual defines the required population order for full-capacity operation; skipping that sequence is the most common reason a kit is not recognised at its rated 6400MT/s speed.

Verify motherboard model

Confirm your system is a GNRD16DNO or GNRD16QM3-NL and check the manual for supported capacity per slot and approved DIMM sequence. This kit will not fit UDIMM or SODIMM platforms and cannot be mixed with unbuffered or non-ECC memory.

How it compares

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

Price $4,129.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.27 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 numberMR51200-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

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

Enter the system BIOS or UEFI and confirm the memory frequency shows 6400 MT/s and CAS latency reads CL52; the registered ECC modules should also report 128 GB total capacity and 1.10 V operation.

What does the package contain and is anything else required to use it?

The box includes two 64 GB DDR5 288-pin RDIMM modules for a total of 128 GB; no additional parts are needed if your motherboard has free RDIMM slots and supports the listed configuration.

Should I choose this 2Rx4 128 GB kit or a different capacity for my ASRock Rack GNRD16DNO?

Select this 2Rx4 128 GB kit when your board's qualified-vendor list approves 64 GB 2Rx4 RDIMMs and you need the maximum two-module capacity at DDR5 6400.

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