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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 64GB (4x16GB) CL52 1.1V ECC RDIMM GIGABYTE MZ73-LM1 memory upgrade

SKU CH-X7Y7-R257R

Adds 64 GB of DDR5 ECC registered memory in a four-module kit validated for the Gigabyte MZ73-LM1 motherboard

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 4X16GB

Show 24 more
  • 64 GB total capacity from four 16 GB modules for maximum server memory density
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth for demanding workloads
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 1 V operation matches the motherboard's memory controller specification exactly
  • 288-pin RDIMM form factor fits the GIGABYTE MZ73-LM1 memory slots without adapters

Exact-match DDR5-6400 ECC kit

This 64 GB kit contains four 16 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.1 V operation. It is built for the GIGABYTE MZ73-LM1 motherboard and other platforms that require registered ECC modules in a 288-pin form factor.

Registered RDIMM build and 288-pin slot fit

Each module uses a registered architecture that buffers address and command signals, allowing all four slots to run fully populated at rated speed. The 288-pin DDR5 keying prevents insertion into UDIMM or SODIMM sockets, so the kit only fits boards wired for RDIMMs.

DDR5 RDIMM population limits

Registered ECC memory relies on the motherboard's qualified-vendor list and population rules; maximum supported capacity and allowed slot order vary by platform revision. Buyers who need larger capacities or mixed-rank configurations must verify those limits in the system manual before installation.

How it compares

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

Price $2,024.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $31.64 per GB
Pricier than about 90% 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 numberMR51200-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGIGABYTE
In the box
Included items64 GB 4 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What speed does the DDR5 6400 interface actually run at on the GIGABYTE MZ73-LM1?

The kit is rated at DDR5 6400 (PC5-51200) and the motherboard supports that speed, so the modules will operate at 6400 MT/s when installed in the validated configuration.

What physical slot and form factor do these modules need on the MZ73-LM1?

They require four 288-pin DDR5 RDIMM slots; the board must accept registered DIMMs, not UDIMM or SODIMM, and the kit provides four 16 GB modules to fill them.

What is the correct installation order for the four modules on this motherboard?

Consult the GIGABYTE MZ73-LM1 manual for the approved DIMM population sequence; the kit is spec-matched to the board's rules, but the manual defines which slots to populate first.

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