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Twelve green DDR4 LRDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 768GB 12x64GB DDR4 2666 ECC LRDIMM CL19 ThinkMate memory upgrade

SKU CH-8H6Q-PP3E0

768 GB DDR4 ECC LRDIMM kit with twelve 64 GB modules at 2666 MHz CL19 for ThinkMate servers

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • Massive 768GB capacity from twelve 64GB modules
  • ECC load-reduced DIMMs protect data integrity under heavy load
  • DDR4 2666MHz speed matches ThinkMate server specifications
  • Low 1.20V operation reduces power draw in dense configurations
  • 288-pin LRDIMM form factor fits qualified ThinkMate GPU-optimised servers

Server memory kit for GPU-optimised ThinkMate

This 768GB kit consists of twelve 64GB DDR4 2666 LRDIMM modules built for ThinkMate GPX-QT8-24E2-8GPU servers. Each module runs at 1.2V with CL19 latency and uses a 4Rx4 load-reduced design. ECC protection and registered signalling help maintain data integrity under sustained multi-GPU workloads.

Replaces lower-capacity DDR4 RDIMM or LRDIMM sets

Moving to twelve 64GB load-reduced modules lets the platform reach its maximum supported memory without exceeding electrical loading limits per channel. The upgrade is worth it when virtualisation density, GPU compute buffers or large dataset caching exceed the capacity of standard registered DIMM populations.

Limited to DDR4 2666 transfer rates

The memory operates at PC4-21300 speeds and cannot run at DDR5 velocities or fit DDR5 slots. Load-reduced buffering reduces electrical load on the memory controller but adds latency compared to unbuffered modules. Systems must support 4Rx4 LRDIMM topology and ECC to use this kit.

How it compares

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

Price $2,913.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $3.79 per GB
Cheaper than about 85% 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 2666 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML21300-944K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items768 GB (12 × 64 GB) DDR4 2666 MHz PC4-21300 4Rx4 1.2 V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

Questions about this item

Will these 288-pin DDR4 LRDIMM modules fit the memory slots on a ThinkMate GPX-QT8-24E2-8GPU server?

Yes, the kit is built for that exact server model and uses the standard 288-pin DDR4 LRDIMM form factor the board requires.

What is the correct population order for the twelve 64 GB modules when installing them in the ThinkMate GPX-QT8-24E2-8GPU?

Follow the server manual's channel sequence; the common mistake is skipping a channel or mixing ranks instead of filling all twelve slots identically.

How can I tell if one of the twelve 64 GB modules needs replacement later?

Run a memory diagnostic; persistent ECC correctable errors or uncorrectable failures on a specific DIMM indicate that module should be swapped.

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