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Eight green DDR5 RDIMM sticks in static bags

NEMIX RAM

NEMIX RAM 1TB 8x128GB DDR5 6400 ECC RDIMM ASRock Rack GNRD16DNO GNRD16QM3-NL memory upgrade

SKU CH-K2A5-RM59X

Eight-module kit provides 1 TB of DDR5 ECC registered memory at 6400 MT/s for ASRock Rack GNRD16DNO and GNRD16QM3-NL servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1TB 8X128GB

Show 4 more
  • 1TB capacity with eight 128GB modules for maximum server density
  • DDR5 6400 speed and CL52 latency deliver rated performance
  • Registered ECC architecture prevents data corruption under full load
  • 10V operation matches the motherboard's memory controller specification
  • Validated for ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards

Capacity and form factor

This is a 1TB DDR5 server memory kit containing eight 128GB registered ECC RDIMMs. It is built for administrators upgrading ASRock Rack GNRD16DNO or GNRD16QM3-NL motherboards that require 288-pin registered modules.

Speed and timing

The kit runs at DDR5 6400 (PC5-51200) with a CAS latency of CL52 at 1.1V. The 2Rx4 rank structure matches the memory controller expectations on the target boards so the full capacity is recognised at rated speed.

Registered ECC architecture

Registered buffering reduces electrical load on the memory controller, allowing all slots to be populated at maximum capacity. On-board ECC corrects single-bit errors in flight, protecting data integrity in production workloads. This kit will not fit systems that require unbuffered UDIMMs or SODIMMs.

How it compares

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

Price $34,037.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $34.04 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 numberMR51200-724K8
Total capacity1 TB (8 × 128 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 items1 TB 8 × 128 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

Will the DDR5 6400 speed run at its full 6400 MT/s rate once installed in an ASRock Rack GNRD16DNO?

Yes, the kit is validated for that motherboard so the memory controller will initialise all eight modules at the rated DDR5 6400 speed without down-clocking.

Does the PC5-51200 designation limit the usable bandwidth on this platform?

PC5-51200 is the peak transfer rate that matches DDR5 6400; the registered DIMM interface lets the board sustain that bandwidth across all populated slots.

What physical slot and clearance requirements do these 288-pin RDIMMs need?

They require standard 288-pin DDR5 RDIMM sockets and have no heat spreader, so they fit in tight server chassis without extra height clearance.

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