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Eight green DDR4 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 512GB (8×64GB) DDR4 3200 PC4-25600 4Rx4 CL22 288-Pin ECC RDIMM THINKMATE memory upgrade

SKU CH-MJAA-QG854

Eight 64 GB DDR4 3200 ECC registered DIMMs totalling 512 GB for ThinkMate GPU-optimised servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • Massive 512GB capacity from eight 64GB modules
  • DDR4 3200 speed rated at PC4-25600 for high throughput
  • ECC registered RDIMM with 4Rx4 rank for data integrity
  • Low 1.2V operating voltage reduces server power draw
  • Validated for ThinkMate GPX-QS4 and GPX-QT8 GPU-optimised servers

Server Memory Kit

This NEMIX RAM kit provides 512GB of DDR4 3200 memory across eight 64GB registered DIMMs. It is built for Thinkmate GPX-QS4-12E2-4GPU and GPX-QT8-22E2-8GPU GPU-optimised servers that require ECC RDIMM modules. The 4Rx4 organisation and CL22 latency suit high-density server configurations.

Build Integration

Each module uses the standard 288-pin DDR4 RDIMM form factor and operates at 1.2V. Registered buffering and ECC reduce electrical load on the memory controller, freeing electrical headroom for large CPU core counts and multiple GPUs. The kit fills eight slots, so the platform must provide at least eight compatible DDR4 RDIMM sockets.

Sustained Load Behaviour

Modules are stress-tested under load to verify stability during continuous operation. ECC corrects single-bit errors in real time, preventing data corruption during long compute runs. The 1.2V operating voltage and absence of heat spreaders rely on server chassis airflow to maintain temperatures during sustained throughput.

How it compares

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

Price $3,553.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.94 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-944K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items512 GB (8 × 64 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How many ranks per DIMM does this 64 GB DDR4-3200 module present to the memory controller?

Each 64 GB module is organised as 4Rx4, presenting four ranks per DIMM to the controller.

What is the operating voltage and registered-buffer design of these DDR4 RDIMMs under continuous server load?

The modules run at 1.2 V and use registered buffering to reduce electrical load on the memory bus during sustained operation.

Which specific Thinkmate GPU-optimised server models are validated for this 8 × 64 GB DDR4-3200 ECC RDIMM kit?

The kit is qualified for Thinkmate GPX-QS4-12E2-4GPU and GPX-QT8-22E2-8GPU servers.

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