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Four green DDR5 RDIMM modules without heat spreaders, 288-pin, 512GB kit

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 6400MHz CL52 1.1V 2Rx4 ECC RDIMM memory upgrade

SKU CH-JTH6-6DGC0

512 GB DDR5 registered ECC server kit of four 128 GB modules at 6400 MHz CL52 for Supermicro GPU SuperServer SYS-422GS-NBRT-LCC

  • Total capacity512 GB (4 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 512GB total capacity supports heavy virtualization workloads with four 128GB modules
  • DDR5 6400MHz speed delivers high memory bandwidth for GPU-accelerated servers
  • CL52 latency at 1.1V balances responsive access with efficient power draw
  • ECC RDIMM registered design protects data integrity in 24/7 enterprise environments
  • Validated for Supermicro SYS-422GS-NBRT-LCC GPU SuperServer ensures drop-in compatibility

Server-grade DDR5 capacity for Supermicro GPU

This NEMIX RAM kit provides 512GB across four 128GB DDR5 RDIMM modules rated at 6400MHz with CL52 latency. Registered ECC design and 2Rx4 organisation suit memory-intensive workloads on the SuperMicro GPU SuperServer SYS-422GS-NBRT-LCC. The 1.1V operating voltage matches the DDR5 standard for registered server memory.

Registered ECC modules without heat spreaders

Each 288-pin RDIMM uses major OEM DRAM from Samsung, Micron or Hynix and relies on the server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, while on-die ECC protects data integrity in the supported Supermicro platform. The bare PCB layout fits dense multi-socket configurations where tall spreaders would interfere with adjacent slots or CPU coolers.

Verify platform qualification before ordering

Confirm the motherboard qualified-vendor list approves this exact part number MR51200-724K4 and that the BIOS revision supports 128GB 2Rx4 registered modules at 6400MHz. Systems requiring unbuffered UDIMMs, lower-density ranks or different pinouts cannot use this kit. Buyers needing non-ECC consumer memory or capacities beyond four modules should consider other configurations.

How it compares

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

Price $17,580.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $34.34 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 numberMR51200-724K4
Total capacity512 GB (4 × 128 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 items512 GB (4 × 128 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What DDR5 speed and latency does the PC5-51200 rating cap at in practice?

The kit runs at 6400 MHz with CL52 latency, which is the real-world limit of the PC5-51200 specification.

What physical slot and module count does the 512 GB kit require?

Four 288-pin DDR5 RDIMM slots are needed to install the 4 x 128 GB modules.

How are the registered ECC modules installed, and which step is often missed?

Align each module with the slot key, press firmly until both retention clips click, then verify in BIOS that all four ranks are detected at 6400 MHz.

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