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Twelve green DDR5 RDIMM modules in a row, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 768GB 12x64GB CL40 1.1V 2Rx4 GIGABYTE MZ73-LM0 memory upgrade

SKU CH-XC03-RN92S

A 768 GB DDR5 registered ECC kit of twelve 64 GB modules at 4800 MT/s, CL40 and 1.1 V, validated for the Gigabyte MZ73-LM0 server board

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 12X64GB

Show 18 more
  • 768 GB total capacity from 12 matched 64 GB modules for maximum server density
  • DDR5-4800 CL40 at 1.1 V delivers rated speed with standard voltage
  • Registered ECC RDIMM architecture corrects single-bit errors and buffers every slot
  • 288-pin 2Rx4 form factor fits the GIGABYTE MZ73-LM0 memory controller exactly
  • Major OEM Samsung, Micron or Hynix DRAM ensures enterprise-grade component quality

768GB DDR5-4800 ECC RDIMM kit for GIGABYTE MZ73-LM0

This 12-module kit delivers 768GB of DDR5-4800 registered ECC memory built to the exact specifications of the GIGABYTE MZ73-LM0 motherboard. Each 64GB module uses a 2Rx4 organization at 1.1V with CL40 latency. It is intended for server administrators who need maximum validated capacity on this specific platform.

Fits 12 DDR5 RDIMM slots on the MZ73-LM0 board

The modules use the 288-pin RDIMM form factor required by this motherboard and will not fit UDIMM or SODIMM slots. Registered buffering reduces electrical load on the memory controller so all twelve slots can be populated at full rated speed. ECC protection corrects single-bit errors in real time to prevent silent data corruption. No heat spreaders are included, so airflow across the DIMMs must be provided by the chassis.

Sustained enterprise workloads at full population

Registered architecture maintains signal integrity when every slot is occupied, allowing continuous operation at DDR5-4800 without downclocking. ECC correction runs transparently during long compute jobs, avoiding unplanned reboots caused by soft errors. The 1.1V operating voltage keeps power draw predictable across the full kit. Verify the motherboard manual for approved population order before installation.

How it compares

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

Price $18,456.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $24.03 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 numberMR38400-924K12
Total capacity768 GB (12 × 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 systemsGIGABYTE
In the box
Included items768 GB 12 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the twelve 64 GB modules run at DDR5-4800 CL40 when every slot on the GIGABYTE MZ73-LM0 is populated?

The kit is built to the exact rank, voltage and timing the board expects, so all twelve 64 GB RDIMMs operate at the rated 4800 MT/s CL40 without downclocking.

How much heat and power do twelve 1.1 V RDIMMs add in a continuously loaded server?

Each module draws 1.10 V with no heat spreader; total power scales with the 768 GB capacity, so plan airflow for the full 12-DIMM population.

What motherboard feature must already be present for this registered ECC kit to function?

The GIGABYTE MZ73-LM0 must support 288-pin DDR5 RDIMM slots with registered ECC capability, which this board provides.

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