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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM GIGABYTE MZ73-LM1 memory upgrade

SKU CH-TK07-X24FX

256 GB four-module DDR5 6400 kit with ECC registered RDIMMs validated for the Gigabyte MZ73-LM1 motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 24 more
  • Exact DDR5-6400 CL52 1.10V spec for GIGABYTE MZ73-LM1
  • Registered 2Rx4 ECC RDIMM prevents silent data corruption
  • 256GB kit 4x64GB fills all slots at rated speed
  • 288-pin DDR5 form factor matches board requirement
  • Lifetime replacement warranty with US-based technical support

256GB DDR5-6400 ECC RDIMM Kit

This NEMIX RAM kit provides 256GB of DDR5 memory across four 64GB Registered DIMMs. It operates at 6400MHz with CL52 latency and 1.1V voltage. The modules are designed as a direct upgrade for the GIGABYTE MZ73-LM1 motherboard.

Suited for populated server slots.

This kit suits administrators expanding a compatible GIGABYTE server to its full registered DIMM capacity with ECC protection. Builders using consumer motherboards that accept only unbuffered UDIMMs should look elsewhere, as the registered design and ECC function will not work on those platforms.

Registered 2Rx4 ECC at 1.1V

The single specification that decides fitment is the 288-pin Registered (RDIMM) 2Rx4 ECC design at 1.1V. Only systems explicitly qualified for this exact rank, voltage, and registered architecture will recognise the full 256GB at the rated 6400MHz speed.

How it compares

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

Price $7,870.99
Pricier than about 84% 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 $30.75 per GB
Pricier than about 88% 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 numberMR51200-924K4
Total capacity256 GB (4 × 64 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 items256 GB 4 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What motherboard must I already own for this 256GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM kit to work?

The kit is verified for the GIGABYTE MZ73-LM1 motherboard and requires that board's 288-pin RDIMM slots to operate at the rated DDR5 6400 speed.

Can I keep my existing DDR5 RDIMMs and add this 4x64GB kit alongside them?

Population rules depend on the MZ73-LM1 manual; mixing different capacities or ranks may force lower speeds or disable slots, so consult the board guide before combining.

How do I confirm the 256GB kit is running at DDR5 6400 with CL52 after installation?

Check the BIOS memory information or a tool like CPU-Z: it should show 6400 MT/s, CL52 timings, 1.10 V, and all four 64GB modules detected as registered ECC.

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