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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 128GB (2x64GB) 6400MHz CL52 1.1V ECC RDIMM 2Rx4 Supermicro SYS-422GS-NBRT-LCC memory upgrade

SKU CH-3W69-YE0NZ

128 GB DDR5 ECC registered server kit in two 64 GB modules at 6400 MHz CL52, 1.1 V, validated for the Supermicro SYS-422GS-NBRT-LCC GPU SuperServer

  • Total capacity128 GB (2 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 128 GB total capacity with two 64 GB modules
  • DDR5 6400 MHz speed rated at PC5-51200
  • ECC registered design detects and corrects data errors
  • Low 1.1 V operating voltage reduces power draw
  • Validated for Supermicro SYS-422GS-NBRT-LCC GPU SuperServer

NEMIX RAM 128GB DDR5 ECC RDIMM Kit

This registered DDR5 memory kit provides 128GB across two 64GB modules for the Supermicro SYS-422GS-NBRT-LCC server. ECC and registered buffering protect data integrity in multi-socket workloads. It targets administrators expanding capacity for virtualisation, databases or GPU compute.

Sustained load behaviour with CL52 1.10V operation

Rated at 6400MHz with CL52 latency, the modules run at 1.10V standard DDR5 voltage. Registered signalling reduces electrical load on the memory controller during continuous throughput. The 2Rx4 organisation supports high-density population without exceeding rank limits per channel.

Verify Supermicro SYS-422GS-NBRT-LCC slot

Confirm the motherboard accepts 288-pin DDR5 RDIMMs and allows 64GB dual-rank modules in your planned configuration. Check the qualified vendor list for 6400MHz PC5-51200 support at 1.1V. Ensure the CPU and BIOS revision enable the target speed with two modules per channel.

How it compares

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

Price $3,946.99
Pricier than about 76% 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 $30.84 per GB
Pricier than about 88% 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
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (2 × 64 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much power does the 1.1 V 128 GB kit draw under sustained load?

Each module operates at 1.10 V DDR5 voltage; total draw depends on the Supermicro SYS-422GS-NBRT-LCC memory controller and workload, not on the kit alone.

What motherboard slot and firmware support are required for these 288-pin registered ECC modules?

The kit needs a Supermicro SYS-422GS-NBRT-LCC with DDR5 RDIMM slots and BIOS that recognises 2Rx4 64 GB density at 6400 MHz PC5-51200.

Can the 2Rx4 6400 MHz CL52 registered DIMMs share channels with different-rank DDR5 already in the server?

Mixing ranks or speeds on one channel is not supported by the Supermicro SYS-422GS-NBRT-LCC memory architecture; populate identical kits per channel for stability.

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