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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 4800 ECC RDIMM GIGABYTE MZ33-AR1 memory upgrade

SKU CH-JETZ-WMXQT

256 GB DDR5 ECC registered kit (4 × 64 GB) running at 4800 MT/s CL40 1.1 V, validated for the Gigabyte MZ33-AR1 server board

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

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  • 256 GB total capacity from four 64 GB modules for high-density server workloads
  • DDR5-4800 speed with CL40 latency delivers rated bandwidth for the MZ33-AR1
  • Registered ECC architecture corrects single-bit errors and supports full-slot population
  • 1 V operation matches the motherboard's memory controller specification exactly
  • 288-pin RDIMM form factor ensures mechanical and electrical fit in every approved slot

Server-grade DDR5 memory kit

This NEMIX RAM kit delivers 256 GB of DDR5 4800 memory in a matched set of four 64 GB modules. It is built for the GIGABYTE MZ33-AR1 motherboard where registered ECC RDIMMs are required for full-capacity operation.

Registered ECC RDIMM form factor

Each module uses the 288-pin RDIMM interface with a 2Rx4 organisation and 1.10 V operating voltage. The registered architecture buffers address and command signals so the memory controller remains stable when all slots are populated, while on-die ECC corrects single-bit errors before they affect data integrity.

Four-module matched kit

The package contains four identical 64 GB RDIMMs tested together at CL40 latency. Installing the matched set avoids mixed-rank timing conflicts and ensures the platform recognises the full 256 GB at its rated DDR5 4800 speed without manual configuration.

How it compares

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

Price $6,784.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.50 per GB
Pricier than about 73% 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 numberMR38400-924K4
Total capacity256 GB (4 × 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 items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What DDR5 speed and bandwidth does this 256GB kit deliver on the GIGABYTE MZ33-AR1?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, matching the motherboard's rated memory controller specification for full-capacity operation.

Which physical slot and form factor must the MZ33-AR1 provide for these modules?

The board needs four 288-pin DDR5 RDIMM slots; each module is a 64GB 2Rx4 registered DIMM without a heat spreader, so standard server DIMM clearance applies.

In what order should the four RDIMMs be seated to avoid a no-post condition?

Follow the MZ33-AR1 manual's exact population sequence — typically filling the primary channel slots first — because registered ECC DIMMs require the correct slot order for the memory controller to initialise all 256GB.

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