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Green printed circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech Supermicro Certified 128GB DDR4 2666MHz LRDIMM ECC Load Reduced 288-Pin Server Memory

SKU CH-YED9-X6JD1

A 128 GB DDR4 2666 MHz LRDIMM with ECC and octal-rank 3DS/TSV architecture for high-density server workloads

  • Total capacity128 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMicron Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 128 GB capacity handles heavy server workloads
  • DDR4 2666 MHz speed delivers high data throughput
  • ECC load-reduced design maintains signal integrity at scale
  • Micron 3DS/TSV octal-rank chips enable dense 128 GB modules
  • Supermicro certified MEM-DR412L-CL02-LR26 ensures validated compatibility

Supermicro Certified 128GB LRDIMM

This Supermicro certified 128GB DDR4 2666MHz LRDIMM module targets servers and workstations that require maximum memory capacity per slot. The octal-rank design uses Micron 3DS TSV chips to reach 128GB in a single 288-pin package. ECC load-reduced operation helps maintain data integrity in dense configurations.

Sustained load behaviour

Load-reduced buffering reduces electrical load on the memory controller, allowing the module to sustain 2666MHz throughput under continuous multi-threaded workloads. The 1.20V operating voltage and CL19 latency support stable operation during extended compute or virtualisation tasks without thermal throttling.

Compatibility checks

Verify that your motherboard supports DDR4 LRDIMM modules and the 2S4Rx4 octal-rank organisation before ordering. Confirm the maximum supported capacity per slot and total system capacity in the vendor documentation. Ensure the BIOS revision lists this module or the Micron MTA144ASQ16G72LSZ-2S6E1 part number as qualified.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $664.99
Pricier than about 74% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $5.20 per GB
Cheaper than about 71% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR412L-CL02-LR26
Total capacity128 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMicron Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S4Rx4 (8Rx4)
Power
Rated voltage1.2 V

Questions about this item

How much power does the 128GB DDR4 2666MHz LRDIMM draw at its 1.20V operating voltage?

The module runs at the standard DDR4 voltage of 1.20V. As a Load Reduced DIMM, it reduces electrical load on the memory bus, which helps manage power draw in dense configurations. Actual wattage depends on your specific server workload and configuration.

What motherboard slot and CPU memory controller features are required to run this 288-pin 8Rx4 LRDIMM?

You need a server motherboard with DDR4 288-pin DIMM slots and a CPU memory controller that supports Load Reduced DIMMs and octal-rank (8Rx4) modules. The platform must also support ECC and the PC4-21300 speed grade for full operation.

Can this Supermicro-certified 128GB LRDIMM be mixed with older RDIMMs in the same server?

Mixing Load Reduced DIMMs with standard Registered DIMMs is not supported on any platform. All populated slots must use the same memory technology. Check your system manual for supported population rules with 8Rx4 LRDIMMs.

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