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Four green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM DDR5-6400 256GB (4x64GB) CL52 1.1V ECC RDIMM 2Rx4 MZ33-CP1 memory upgrade

SKU CH-9W9M-3ZGBK

256GB DDR5-6400 ECC registered RDIMM kit with four 64GB modules at CL52 and 1.1V, validated for the Gigabyte MZ33-CP1 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
  • 256 GB total capacity from four 64 GB modules for maximum server density
  • DDR5-6400 speed with CL52 latency delivers rated throughput on the GIGABYTE MZ33-CP1
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 1 V operation matches the motherboard's memory-controller specification
  • 288-pin RDIMM form factor fits the board's DDR5 slots exactly

256GB DDR5-6400 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5-6400 registered ECC modules built for the GIGABYTE MZ33-CP1 motherboard. It targets server administrators who need maximum supported capacity with full error correction and registered buffering.

Sustained-load behaviour

Registered architecture reduces electrical load on the memory controller so all four slots run at the rated 6400MT/s continuously. ECC corrects single-bit errors on the fly preventing silent data corruption during long compute runs.

Rank and voltage constraint

The 2Rx4 organisation at 1.1V matches the exact rank structure and voltage the MZ33-CP1 memory controller expects; a different rank count or voltage will prevent the system from recognising the full 256GB.

How it compares

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

Price $8,578.99
Pricier than about 85% 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 $33.51 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 numberMR51200-924K4
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

How much heat and power does the 1.1V 256GB kit generate when fully populated all day?

Each module runs at 1.1V without a heat spreader, so the four 64GB RDIMMs draw minimal power and rely on server chassis airflow for cooling under continuous load.

What must the system already have to accept this 4 x 64GB RDIMM kit?

A GIGABYTE MZ33-CP1 motherboard with four free 288-pin DDR5 RDIMM slots and a memory controller that supports 2Rx4 registered ECC at 6400 MT/s.

Will the registered ECC design work with older unbuffered UDIMMs still installed in other slots?

No — registered RDIMMs and unbuffered UDIMMs cannot be mixed; the board requires all populated slots to use the same registered ECC type for stable operation.

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