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Two green DDR5 RDIMM modules with gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 6400 CL52 2Rx4 1.1V ECC RDIMM GIGABYTE MZ33-CP1 memory upgrade

SKU CH-Y9EZ-HGC1W

128 GB DDR5-6400 ECC RDIMM kit with CL52 timing and 1.1 V operation for the GIGABYTE MZ33-CP1 motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 24 more
  • Exact-match 128 GB kit runs at DDR5-6400 CL52 1.1 V
  • Registered ECC 2Rx4 design prevents silent data corruption
  • 288-pin RDIMM form factor fits GIGABYTE MZ33-CP1 motherboard
  • Samsung Micron Hynix chips deliver enterprise-grade stability
  • Lifetime replacement warranty with free US-based technical support

System-Specific DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR5-6400 Registered ECC modules built for the GIGABYTE MZ33-CP1 motherboard. Each 288-pin RDIMM runs at 1.1V with CL52 latency and a 2Rx4 rank layout. The registered design and on-die ECC protect data integrity in multi-slot server configurations.

Verified Motherboard Fitment

The kit matches the exact rank, voltage, and timing the MZ33-CP1 memory controller expects, so all slots populate at rated speed without down-clocking. It replaces mismatched or lower-capacity DIMMs that force the controller to reduce frequency or reject the configuration. The upgrade is worth it when your workload needs full-channel bandwidth and error correction across every populated slot.

Build Integration Requirements

Installation requires a GIGABYTE MZ33-CP1 motherboard with DDR5 RDIMM slots and a CPU that supports registered ECC memory at this density. The modules need no heat spreader clearance and draw 1.1V from the DIMM socket. Population order must follow the board manual to enable all channels. This kit does not suit boards limited to UDIMM, SODIMM, or non-ECC memory.

How it compares

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

Price $4,305.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $33.64 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 numberMR51200-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 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 288-pin RDIMM modules fit the GIGABYTE MZ33-CP1 motherboard slots?

Yes, the kit uses the 288-pin Registered RDIMM form factor that the MZ33-CP1 requires; it is not a UDIMM or SODIMM.

What is the correct installation order for the two 64 GB sticks on the MZ33-CP1?

Consult the motherboard manual for the approved DIMM population sequence, as server boards often require specific slots to be filled first for full 128 GB recognition.

Do these Samsung, Micron or Hynix DRAM chips need any firmware updates or periodic replacement?

No firmware updates are required for the memory modules themselves; ECC corrects single-bit errors on the fly, and the modules are designed for the server's full service life.

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