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Twelve bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 6400 ECC Registered RDIMM 1.5TB (12x128GB) CL52 1.1V 288-pin memory upgrade

SKU CH-M9K4-KF60E

1.5 TB DDR5 server kit with twelve 128 GB registered ECC modules at 6400 MT/s, CL52, 1.1 V, validated for the Gigabyte MZ73-LM0 motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 24 more
  • 5 TB capacity in a 12-module kit scales server memory to full population
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth for compute workloads
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 1 V operation reduces power draw across all 12 slots
  • Verified fit for GIGABYTE MZ73-LM0 motherboard with 288-pin RDIMM form factor

Server DDR5 upgrade kit

This NEMIX RAM kit delivers 1.5TB across twelve 128GB DDR5 RDIMM modules rated at 6400 MT/s with CL52 latency and 1.1V operation. It targets administrators scaling memory capacity on the GIGABYTE MZ73-LM0 motherboard where registered ECC DIMMs are required.

Registered ECC changes capacity and stability

The registered buffer offloads the memory controller so all twelve slots can run fully populated at rated speed, while on-die ECC corrects single-bit errors before they reach the operating system. No heat spreaders are included, so airflow across the bare modules must be provided by the chassis.

DDR5 6400 limits in dense configs

DDR5 6400 at 2Rx4 density places high electrical load on the memory controller; full twelve-slot population may require BIOS updates or relaxed timings to remain stable. Systems that only accept UDIMM or SODIMM form factors cannot use these 288-pin RDIMMs at all.

How it compares

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

Price $52,362.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $34.91 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K12
Total capacity1.5 TB (12 × 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 items1.5 TB 12 × 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

Will the 12 128GB RDIMMs need replacement or extra cooling later?

The kit has no heat spreader and runs at 1.1V; under normal server airflow the modules do not require scheduled replacement or additional cooling beyond standard chassis fans.

What limit appears first when the 1.5TB kit runs at DDR5 6400 continuously?

The CL52 latency at 6400 MT/s is the primary timing constraint; sustained full-capacity workloads will hit CAS latency limits before bandwidth or voltage headroom is exhausted.

How much noise, heat and power should I expect from the 12-module kit running all day?

Registered ECC RDIMMs at 1.1V draw minimal power per module, produce low heat, and add no audible noise; total system impact depends on chassis airflow rather than the memory itself.

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