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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 512GB (4×128GB) 2Rx4 ECC Registered RDIMM memory upgrade for GIGABYTE MZ73-LM0

SKU CH-X2KS-T7MJR

A 512 GB DDR5 server memory kit with four 128 GB ECC Registered RDIMMs running at 6400 MT/s, CL52, 1.1 V, validated for the GIGABYTE MZ73-LM0 motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 24 more
  • 512 GB total capacity from four 128 GB modules for memory-intensive server workloads
  • DDR5-6400 speed with CL52 latency delivers rated bandwidth on compatible platforms
  • Registered ECC architecture offloads the controller and corrects single-bit errors automatically
  • 2Rx4 organization at 1.10 V matches the motherboard's required rank and voltage
  • 288-pin RDIMM form factor fits the GIGABYTE MZ73-LM0 memory slots precisely

Exact-match 512 GB DDR5 kit for GIGABYTE MZ73-LM0

This 512 GB kit contains four 128 GB DDR5-6400 RDIMMs built to the board's exact rank, voltage and timing requirements. It is intended for administrators upgrading a GIGABYTE MZ73-LM0 server to its full supported capacity with registered ECC memory.

DDR5-6400 registered ECC limits

The modules run at PC5-51200 with CL52 latency at 1.10 V. Registered architecture buffers every slot so the memory controller can address all four DIMMs at rated speed, while ECC corrects single-bit errors on the fly. Population rules in the motherboard manual dictate which slots must be filled first.

Tool-free DIMM installation and common pitfalls

Each 288-pin RDIMM seats vertically in the board's DDR5 slots; align the notch, press until the latches click, and verify full insertion. The usual issues are mixing RDIMMs with UDIMMs, skipping the prescribed population order, or leaving a slot partially seated, any of which prevents the system from posting at full capacity.

How it compares

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

Price $16,310.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $31.86 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 numberMR51200-724K4
Total capacity512 GB (4 × 128 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 items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I choose the 4×128 GB kit or a different capacity for the GIGABYTE MZ73-LM0?

The 4×128 GB kit provides 512 GB total and matches the board's memory-population rules for full-capacity operation at DDR5-6400.

What does the DDR5-6400 (PC5-51200) rating mean once the modules are installed?

The kit runs at 6400 MT/s with CL52 latency at 1.1 V, delivering the rated bandwidth the memory controller expects when all four slots are populated.

How does the 288-pin RDIMM interface and registered ECC design affect real-world use?

Registered buffering offloads the memory controller so every slot runs at full speed, while ECC corrects single-bit errors on the fly to prevent silent data corruption.

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