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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 256GB (4x64GB) ECC RDIMM CL40 1.1V 2Rx4 ASRock Rack GENOAD12M3-2Q memory upgrade

SKU CH-QNHY-626VP

256 GB kit of four 64 GB DDR5-4800 ECC registered RDIMMs at 1.1 V CL40, validated for the ASRock Rack GENOAD12M3-2Q motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 4 more
  • 256 GB capacity across four 64 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated throughput without downclocking
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 1 V operation matches the motherboard's voltage requirement exactly
  • 288-pin RDIMM form factor fits the ASRock Rack GENOAD12M3-2Q memory slots precisely

Exact-match DDR5 server kit

This 256GB kit contains four 64GB DDR5 4800 RDIMM modules built for the ASRock Rack GENOAD12M3-2Q motherboard. Registered ECC design lets the memory controller run every slot fully populated at rated speed. The kit targets administrators who need maximum supported capacity without mixing ranks or voltages.

Registered ECC with 2Rx4 organisation

The single specification that decides fitment is the 2Rx4 registered ECC layout at 1.1V CL40. The motherboard requires this exact rank structure and registered signalling; UDIMM or SODIMM modules will not be recognised. Population rules in the board manual must be followed to reach full 256GB capacity.

Straightforward DIMM installation

Align the 288-pin modules with the keyed slots and press until the latches click. Common issues include ignoring the manual's population sequence, which can leave capacity unrecognised, and mixing these registered sticks with unbuffered memory, which prevents the system from posting.

How it compares

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

Price $7,171.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.02 per GB
Pricier than about 79% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What does the DDR5 4800 speed mean once the kit is installed in my server?

The modules will run at 4800 MT/s, delivering PC5-38400 bandwidth when the motherboard populates all four slots with this 256 GB kit.

How does the 288-pin RDIMM interface and registered design affect what the memory controller can handle?

The registered buffer lets the controller drive all four slots at full 256 GB capacity without signal degradation, while ECC corrects single-bit errors on the fly.

What physical space and slot layout does this 4 x 64 GB kit require on the ASRock Rack GENOAD12M3-2Q?

Four standard-height 288-pin DDR5 RDIMM slots; the modules have no heat spreader, so they fit in tight server chassis without clearance issues.

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