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Six green DDR5 RDIMM modules in a row, no heat spreaders, 288-pin gold contacts visible

NEMIX RAM

NEMIX RAM DDR5 768GB 6x128GB 6400MHz CL52 2Rx4 1.1V ECC RDIMM memory upgrade for GIGABYTE MZ73-LM2

SKU CH-WGQG-PD99Q

A 768 GB DDR5 registered ECC memory kit of six 128 GB modules running at 6400 MHz with CL52 latency and 1.1 V, validated for the GIGABYTE MZ73-LM2 motherboard

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 6X128GB

Show 24 more
  • 768 GB total capacity from six 128 GB modules
  • DDR5 6400 speed rated at PC5-51200 for server throughput
  • Registered ECC design corrects single-bit errors automatically
  • CL52 latency at 1.1 V matches motherboard timing exactly
  • 288-pin RDIMM form factor fits GIGABYTE MZ73-LM2 slots

Exact-fit 768 GB DDR5 kit

This 6-module kit delivers 768 GB of DDR5-6400 registered ECC memory in a 6 x 128 GB configuration. It is built to the precise 1.1 V, CL52, 2Rx4 specification the GIGABYTE MZ73-LM2 motherboard expects for full-capacity recognition. The 288-pin RDIMM form factor matches the board's required registered DIMM slots.

Sustained-load behaviour

Registered buffering offloads the memory controller so all six slots can run fully populated at the rated 6400 MT/s without down-clocking. ECC corrects single-bit errors on the fly, preventing silent data corruption during long compute runs. The 2Rx4 organisation maintains signal integrity across the full population.

Thermals and power

Modules operate at the standard 1.10 V DDR5 voltage with no heat spreaders, relying on chassis airflow for cooling. Power draw scales with the 768 GB capacity under load, while the registered design keeps per-pin current within spec. Acoustic output is limited to the system fans moving air across the bare PCBs.

How it compares

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

Price $27,169.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $35.38 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 numberMR51200-724K6
Total capacity768 GB (6 × 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 systemsGIGABYTE
In the box
Included items768 GB 6 × 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

How much power does the 768GB kit draw at its 1.1V operating voltage?

Each 128GB module runs at 1.1V, so the six-module kit operates at that same low voltage to reduce server power draw under full load.

Does the GIGABYTE MZ73-LM2 motherboard need a specific BIOS revision or CPU stepping to recognise all six 128GB RDIMMs?

The kit is validated for the MZ73-LM2 at DDR5-6400; consult the board manual for approved population order and any firmware updates before installing all six slots.

Can I mix these 2Rx4 Registered ECC modules with older DDR5 UDIMMs already installed in the server?

No, Registered RDIMMs and Unbuffered UDIMMs use different signalling and cannot be mixed on the same motherboard.

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