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Six bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB 6x128GB DDR5 4800 CL40 1.1V ECC RDIMM Server Memory

SKU CH-4RGC-1CZB4

Six 128 GB DDR5 registered ECC modules running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 768GB (6 x 128GB)

  • 768 GB total capacity from six 128 GB modules for large-scale server workloads
  • DDR5 4800 MT/s speed (PC5-38400) delivers high memory bandwidth
  • CL40 latency at 1.1 V balances responsiveness with power efficiency
  • ECC and registered design protects data integrity in mission-critical systems
  • 288-pin RDIMM form factor fits compatible DDR5 server motherboards

Capacity and configuration

This kit provides 768GB of DDR5 server memory in six 128GB registered DIMMs. It is designed for enterprise servers and workstations that require high-density ECC modules for data integrity.

Thermals noise and power draw

The modules operate at 1.1V without heat spreaders, relying on system airflow for cooling. Registered buffering and ECC functionality add minimal overhead to the memory subsystem power budget.

Build integration

The 288-pin RDIMM form factor fits standard DDR5 server motherboards with registered memory support. Six populated slots leave no empty DIMM positions in a six-channel configuration, so capacity cannot be expanded without replacing modules.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $22,250.99
Pricier than about 93% of the 6,523 comparable items (median $188.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
Price per GB $28.97 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-744K6
Total capacity768 GB (6 × 128 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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules, and what step is commonly missed?

Align each module's key notch with the motherboard slot, press down firmly until both retention clips click, and follow the board manual's channel population order for 4Rx4 registered DIMMs.

What maintenance or replacement will the 6 x 128GB kit need over time?

No scheduled maintenance is required; if a module fails it is replaced individually, and the registered ECC design helps detect errors before they affect data integrity.

What limit appears first when the 4800 MHz CL40 memory runs under sustained load?

The 1.10 V operating voltage and CL40 latency define the thermal and timing envelope; sustained throughput is bounded by the DDR5 4800 (PC5-38400) specification.

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