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Twelve bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 768GB 12x64GB ECC RDIMM 2Rx4 CL40 1.1V 288-pin memory upgrade for GIGABYTE MZ33-AR1

SKU CH-5M5M-71K1E

A 768GB DDR5-4800 ECC Registered RDIMM kit of twelve 64GB modules at 1.1V CL40, validated for the GIGABYTE MZ33-AR1 motherboard

  • 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 twelve 64 GB modules for maximum server density
  • DDR5-4800 speed with CL40 latency at 1.1 V for rated performance
  • Registered ECC RDIMM design corrects single-bit errors and stabilises fully populated slots
  • 288-pin 2Rx4 form factor matches the GIGABYTE MZ33-AR1 motherboard requirements
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise reliability

768GB DDR5 ECC RDIMM kit for GIGABYTE MZ33-AR1

This NEMIX RAM kit delivers 768GB across twelve 64GB DDR5-4800 Registered DIMMs. Each module runs at 1.1V with CL40 latency and 2Rx4 organisation. The ECC Registered design targets servers and workstations that require maximum capacity and data integrity on the GIGABYTE MZ33-AR1 motherboard.

Upgrade from partial fills or lower-capacity RDIMMs

Populating all slots with matched 2Rx4 modules lets the memory controller run the full 768GB at rated speed without down-clocking. The jump is worth it when workloads exceed the capacity of smaller kits or when mixed-rank populations force the platform to reduce frequency or disable ranks.

DDR5-4800 Registered ECC interface limits

The DDR5-4800 Registered ECC interface caps transfer rate at 4800 MT/s and requires a motherboard that supports 2Rx4 Registered DIMMs at 1.1V. Boards limited to UDIMM, SODIMM, lower maximum capacity, or different rank structures cannot use this kit. Verify the MZ33-AR1 memory-population rules before installation.

How it compares

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

Price $20,151.99
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 $26.24 per GB
Pricier than about 72% 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

Does the 288-pin DDR5 RDIMM form factor fit the GIGABYTE MZ33-AR1 motherboard slots?

Yes, the 288-pin Registered DDR5 RDIMM is the exact form factor required by the GIGABYTE MZ33-AR1 motherboard; it is not a UDIMM or SODIMM.

What is the correct population order when installing all 12 modules?

Install the 12 modules following the motherboard manual's approved DIMM population sequence; skipping the specified order can prevent the system from recognising the full 768 GB capacity.

Will the 1.1 V operating voltage of these RDIMMs remain stable over the server's lifespan?

The modules run at the standard DDR5 1.1 V; registered ECC architecture offloads the memory controller so every slot runs fully populated at rated voltage continuously.

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