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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 4800 CL40 ECC RDIMM memory upgrade for GIGABYTE MZ73-LM1

SKU CH-NXSW-WFWAR

256 GB kit of four 64 GB DDR5 4800 CL40 ECC registered RDIMMs at 1.1 V, validated for the GIGABYTE MZ73-LM1 motherboard

  • 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 capacity in a 4 × 64 GB kit for dense server workloads
  • DDR5 4800 MT/s speed rated at PC5-38400 for high throughput
  • Registered ECC RDIMM design corrects single-bit errors and buffers signals
  • CL40 latency at 1.1 V balances responsiveness with power efficiency
  • 288-pin form factor validated for GIGABYTE MZ73-LM1 motherboard compatibility

Server-specific DDR5-4800 RDIMM kit

This NEMIX RAM kit delivers 256 GB across four 64 GB DDR5 Registered DIMMs rated at 4800 MT/s with CL40 latency and 1.1 V operation. The modules use 2Rx4 organisation and on-die ECC to meet enterprise memory-controller requirements.

Verified for GIGABYTE MZ73-LM1 boards

The 288-pin Registered form factor matches the motherboard's slot specification and population rules, so every slot can be filled without signal-integrity loss. Builders needing unbuffered UDIMMs, lower capacities, or non-ECC memory must choose a different product.

Registered ECC with 2Rx4 rank structure

Registered buffering offloads the memory controller while ECC corrects single-bit errors in flight, enabling full-capacity operation across all four slots on the GIGABYTE MZ73-LM1 platform.

How it compares

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

Price $6,117.99
Pricier than about 82% 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 $23.90 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 numberMR38400-924K4
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

Other versions of this model

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Questions about this item

Will the 288-pin RDIMM modules fit the GIGABYTE MZ73-LM1 motherboard slots?

Yes, the kit uses the 288-pin DDR5 RDIMM form factor that the MZ73-LM1 requires; it is not a UDIMM or SODIMM so it matches the board's physical slot keying exactly.

What is the correct population order when installing all four 64 GB sticks?

Consult the MZ73-LM1 manual for the approved DIMM sequence; the board's memory-population rules dictate which slots must be filled first for full 256 GB recognition.

Does the registered ECC design reduce long-term maintenance compared with unbuffered memory?

Registered buffering offloads the memory controller and ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots that would otherwise require troubleshooting or module replacement.

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