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Two green DDR5 RDIMM sticks, black chips, no heat spreaders, 288 pins, 128GB kit

NEMIX RAM

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

SKU CH-NG6A-60ZD4

128 GB DDR5 6400 ECC RDIMM kit with 2Rx4 registered modules at 1.1 V CL52 for ASRock Rack GENOA2D16NQM3-2Q

  • 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
  • 128 GB capacity in a 2 x 64 GB kit for high-density server workloads
  • DDR5-6400 speed with CL52 latency delivers rated throughput for compatible platforms
  • Registered ECC architecture corrects single-bit errors and supports full-slot population
  • 10 V operation matches the motherboard's voltage requirement for stable operation
  • 288-pin RDIMM form factor fits the ASRock Rack GENOA2D16NQM3-2Q motherboard exactly

Purpose-Built Server Memory Kit

This 128 GB DDR5 kit contains two 64 GB registered ECC RDIMMs designed for the ASRock Rack GENOA2D16NQM3-2Q motherboard. It targets administrators who need guaranteed population of every slot at full rated capacity without manual tuning.

Critical Compatibility Spec

The single specification that decides fit is the 2Rx4 registered ECC layout at 1.10 V with CL52 timing. Only modules matching this exact rank, voltage, and latency combination will be recognised at 6400 MT/s by the board's memory controller.

Sustained-Load Behaviour

Registered buffering offloads the memory controller so all channels remain stable when every DIMM slot is populated continuously. On-die ECC corrects single-bit errors in real time, preventing silent data corruption during extended compute or database workloads.

How it compares

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

Price $4,254.99
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 $33.24 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

What does DDR5-6400 with CL52 actually deliver when installed in a server?

The kit runs at 6400 MT/s with a CAS latency of 52 cycles, giving the memory controller the exact timing and 1.1 V it expects so all slots populate at rated speed without down-clocking.

How does the PC5-51200 rating and registered ECC design affect real-world throughput?

PC5-51200 confirms a 51200 MB/s peak transfer rate per module, while the registered buffer and on-die ECC let the board fill every slot at full capacity and correct single-bit errors on the fly.

Will these 288-pin RDIMMs fit the ASRock Rack GENOA2D16NQM3-2Q without clearance issues?

Yes — the 288-pin RDIMM form factor matches the board's DIMM slots exactly, and the modules have no heat spreader so they clear standard server heatsinks and airflow ducts.

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