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Two green DDR5 RDIMM modules, black chips, no heat spreaders, 288 pins

NEMIX RAM

NEMIX RAM 128GB 2x64GB DDR5 4800 CL40 2Rx4 1.1V ECC RDIMM memory upgrade for ASRock Rack GENOAD12M3-2Q

SKU CH-0VNA-RV6B1

128 GB DDR5-4800 ECC registered RDIMM kit (2×64 GB, CL40, 1.1 V, 2Rx4) validated for the ASRock Rack GENOAD12M3-2Q motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 4 more
  • 128 GB kit (2×64 GB) expands server memory capacity
  • DDR5-4800 CL40 at 1.10 V matches rated board speed
  • Registered ECC RDIMM corrects single-bit errors on the fly
  • 2Rx4 288-pin form factor fits ASRock Rack GENOAD12M3-2Q slots
  • Lifetime replacement warranty with free US-based technical support

Exact-match DDR5 RDIMM kit

This 128GB kit contains two 64GB DDR5-4800 PC5-38400 registered ECC modules built to the CL40 2Rx4 1.1V specification. It is designed for the ASRock Rack GENOAD12M3-2Q motherboard and uses the 288-pin RDIMM form factor that board requires. The registered architecture and ECC function let every slot run fully populated at rated speed while correcting single-bit errors on the fly.

Check your configuration first

Consult your system or motherboard manual for supported capacities, approved DIMM population order, and installation steps before purchase. Memory support varies by model, so verify the board accepts this exact rank, voltage, and timing combination. The kit will not fit UDIMM or SODIMM slots, and mismatched population rules can prevent the system from recognising the full capacity.

Replaces smaller or slower DDR5 RDIMM sets

If your server currently runs a lower-capacity DDR5 registered ECC kit or modules at a slower data rate, this upgrade doubles the installed memory and restores full-speed operation across all populated slots. The jump is worth it when workloads hit the present memory ceiling or when ECC correction logs show rising error counts. It does not suit systems that need UDIMM, SODIMM, 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 $3,161.99
Pricier than about 73% 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 $24.70 per GB
Pricier than about 69% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 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

Does the 128GB kit include both 64GB RDIMMs or must I buy a second module separately?

The package contains two 64GB DDR5 4800 CL40 2Rx4 1.1V 288-pin ECC Registered RDIMMs, giving the full 128GB capacity in a single kit.

Why choose the 2Rx4 1.1V CL40 version instead of a different rank or voltage?

The ASRock Rack GENOAD12M3-2Q memory controller expects exactly 2Rx4 organisation at 1.1V with CL40 timing; matching those parameters lets the board recognise the full 128GB and run at the rated DDR5 4800 speed.

What does the DDR5 4800 (PC5-38400) rating mean once the modules are installed in the server?

The modules will operate at 4800 MT/s with a peak bandwidth of 38400 MB/s per DIMM, and the registered ECC design keeps every slot stable at full capacity while correcting single-bit errors on the fly.

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