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Two green 288-pin DDR4 LRDIMM modules, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR4 2666 CL19 ECC LRDIMM memory upgrade

SKU CH-746N-57C0J

128 GB kit of two 64 GB DDR4 2666 CL19 ECC LRDIMM modules at 1.2 V for ThinkMate servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 128 GB total capacity from two 64 GB modules for large server workloads
  • DDR4 2666 speed rated at PC4-21300 for high data throughput
  • ECC with load-reduced design maintains signal integrity on heavily populated channels
  • CL19 latency at 1.20 V balances responsiveness with power efficiency
  • Validated for ThinkMate GPX-QT8-24E2-8GPU GPU-optimised servers

128GB DDR4 ECC LRDIMM kit for ThinkMate servers

This 128GB kit consists of two 64GB DDR4 2666 CL19 LRDIMM modules built with ECC and load-reduced architecture. It targets ThinkMate GPX-QT8-24E2-8GPU GPU-optimised servers and similar enterprise platforms that require registered ECC memory. The modules operate at 1.2V and use a 288-pin form factor.

Sustained load stability

ECC corrects single-bit errors in real time while the load-reduced buffer reduces electrical load on the memory controller during continuous operation. The 4Rx4 organisation and CL19 latency support consistent throughput for virtualisation, database and GPU compute workloads. Modules are stress tested under load before shipment.

Major OEM chips on plain green PCB

Samsung, Micron or Hynix DRAM components populate the modules without a heat spreader, relying on server chassis airflow for cooling. The standard 288-pin DDR4 LRDIMM keying ensures direct insertion into compatible ThinkMate DIMM slots. No additional brackets or cables are required for installation.

How it compares

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

Price $492.99
Typical for this category: the median of 21,161 items is $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 $3.85 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 numberML21300-944K2
Total capacity128 GB (2 × 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 items128 GB (2 × 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

How much power does the 1.2 V DDR4 2666 kit draw when the server runs continuously?

Each 64 GB module operates at 1.20 V, so the pair runs at standard DDR4 voltage; total draw depends on the server's memory controller and workload.

What must the ThinkMate GPX-QT8-24E2-8GPU already have for this 288-pin LRDIMM kit to function?

The server needs free DDR4 LRDIMM slots that accept 4Rx4 registered modules and a BIOS that supports 128 GB total capacity.

Will the CL19 4Rx4 modules work alongside older DDR4 RDIMMs already installed in the same ThinkMate server?

Mixing LRDIMM and RDIMM types is not supported; all slots must use the same registered memory technology for the system to boot.

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