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Four green DDR4 LRDIMM sticks in anti-static bags

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 2666 ECC LRDIMM CL19 1.2V 288-Pin THINKMATE Server Memory Upgrade

SKU CH-3FTR-BYEKQ

256 GB DDR4 2666 ECC load-reduced server memory kit, four 64 GB modules at CL19 1.2 V, validated for Thinkmate GPU-optimised systems

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 256GB total capacity for memory-intensive server workloads
  • Four 64GB modules in a matched kit for balanced performance
  • DDR4 2666 speed with CL19 latency for responsive data access
  • ECC LRDIMM load-reduced design maintains signal integrity at high density
  • 2V operation reduces power draw in multi-socket deployments

Capacity and configuration

This kit provides 256GB of DDR4 memory across four 64GB LRDIMM modules. It is built for ThinkMate GPX-QT8-24E2-8GPU GPU-optimised servers that require load-reduced ECC memory at 2666 MT/s.

Speed, latency and headroom

The modules run at DDR4 2666 (PC4-21300) with a CAS latency of 19 and operate at 1.2V. Four-rank 4Rx4 organisation and ECC give maximum density per slot, while the load-reduced buffer reduces electrical load on the memory controller for stable operation at full capacity.

Form factor and daily handling

Each module uses the standard 288-pin DDR4 LRDIMM form factor without a heat spreader, relying on server chassis airflow for cooling. The kit is validated for the target ThinkMate platform, so installation follows the system manual without additional configuration steps.

How it compares

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

Price $940.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $3.68 per GB
Cheaper than about 86% 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 numberML21300-944K4
Total capacity256 GB (4 × 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 items256 GB (4 × 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 the 2666 MT/s DDR4 LRDIMM kit run at the speed of the slowest modules already installed in the THINKMATE server?

The kit operates at DDR4 2666 (PC4-21300). When mixed with slower modules, the system typically clocks all memory to the lowest common speed supported by the platform.

How can I verify the 4Rx4 ECC LRDIMM modules are recognised correctly after installation?

Check the BIOS or UEFI memory information screen; it should show 256 GB total across four 64 GB modules, DDR4 2666, ECC active, and 4Rx4 organisation.

What comes in the package and are any extra components required for installation?

The box contains four 64 GB DDR4 2666 ECC LRDIMM modules (288-pin, 1.2 V, CL19). No additional parts are needed; install directly into compatible LRDIMM slots.

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