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Four green circuit boards with gold contacts and black memory chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR51200-328K4 128GB (4x32GB) DDR5 6400 CL52 1.1V 2Rx8 ECC RDIMM memory upgrade

SKU CH-30B9-DKK69

128 GB DDR5 server kit with four 32 GB registered ECC RDIMMs at 6400 MT/s, CL52 and 1.1 V for GIGABYTE MZ23-SU0

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 24 more
  • 128 GB total capacity from four 32 GB modules for high-density server workloads
  • DDR5-6400 speed with CL52 latency delivers rated throughput for the GIGABYTE MZ23-SU0
  • Registered ECC RDIMM design offloads the memory controller and corrects single-bit errors on the fly
  • 1 V operation matches the platform's voltage requirement for stable full-population performance
  • 288-pin DDR5 RDIMM form factor ensures exact mechanical and electrical fit in every slot

Exact-match server upgrade

This NEMIX RAM kit provides 128GB of DDR5 memory across four 32GB RDIMM modules. It is built for the GIGABYTE MZ23-SU0 motherboard where registered ECC memory is required. The 2Rx8 organisation and 1.1V operation match the platform's memory controller expectations exactly.

Thermals and power at rated speed

Operating at DDR5-6400 with CL52 timings, the modules run at the standard 1.1V without a heat spreader. Registered buffering reduces electrical load on the memory controller, keeping power draw predictable when all four slots are populated. ECC correction runs continuously in the background.

Sustained load behaviour

Under continuous workloads the registered architecture maintains signal integrity across the fully populated 288-pin interface. ECC detects and corrects single-bit errors on the fly, preventing silent data corruption during long compute runs. The kit is validated for full-capacity operation at its rated 6400 MT/s speed.

How it compares

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

Price $4,547.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.53 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 numberMR51200-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGIGABYTE
In the box
Included items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install this 288-pin DDR5 RDIMM kit in my GIGABYTE MZ23-SU0, and what step is often missed?

Power down, open the chassis, and insert each 32 GB module into the slots specified by the motherboard manual — the step most people skip is checking the exact population order for four 2Rx8 DIMMs so the server recognises the full 128 GB at DDR5-6400.

What maintenance or replacement will this ECC registered memory need over time?

No routine maintenance is required; the modules have no heat spreaders or moving parts, so replacement only occurs if a DIMM fails — ECC corrects single-bit errors on the fly, and the lifetime warranty covers a replacement if one ever becomes defective.

What limit appears first when this 1.1 V CL52 kit runs sustained workloads?

The memory controller’s maximum supported capacity and population rules for the GIGABYTE MZ23-SU0 are the first ceiling — once all four slots are filled with 2Rx8 RDIMMs at 6400 MT/s, you cannot add more memory without changing the platform.

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