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Green circuit board with black memory chips and gold edge contacts

A-Tech

A-Tech 128GB DDR4 2666 ECC LRDIMM Server Memory

SKU CH-BEN2-QA4AM

128 GB DDR4 2666 ECC LRDIMM server module with CL15 latency and 1.2 V operation

  • Total capacity128 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 128GB single-module capacity enables high-density server configurations
  • DDR4 2666MHz speed delivers PC4-21300 bandwidth for demanding workloads
  • ECC Load Reduced DIMM technology corrects errors while reducing electrical load on the memory bus
  • CL15 latency at 1.2V standard voltage balances responsiveness with power efficiency
  • 288-pin DDR4 form factor fits compatible Dell server platforms including 370-ADMX and SNP917VKC part numbers

128GB DDR4 2666 ECC LRDIMM Server Module

This 128GB DDR4 2666 ECC LRDIMM module is built for server platforms that require high-density registered memory with error correction. It suits administrators upgrading compatible Dell systems or similar enterprise hosts that support load-reduced DIMMs. Buyers needing non-ECC consumer memory or standard RDIMM form factors cannot use this product.

Thermals noise and power at 1.2V standard voltage

Operating at the DDR4 standard 1.20V, the module runs within normal server thermal envelopes without additional cooling requirements. Load-reduced buffering reduces electrical load on the memory bus, helping maintain stable power draw under sustained workloads. No heat spreader is fitted, so airflow across the DIMM slots handles dissipation.

288-pin DIMM slot fit and single-module capacity

The 288-pin DDR4 DIMM installs directly into a compatible server slot, delivering 128GB in a single module to free remaining slots for further expansion. ECC LRDIMM architecture requires a platform that supports load-reduced registered memory and 8Rx4 3DS/TSV organisation. Systems limited to standard RDIMM or lower densities will not accept this module.

How it compares

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

Price $639.99
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 $5.00 per GB
Cheaper than about 73% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineDell RAM Equivalent Replacement Memory
Model name370-ADMX, A9031094, A9781931, A9810565, AB003148, SNP917VKC/128G, SNP917VKC/128VXR
Part number370-ADMX, A9031094, A9781931, A9810565, AB003148, SNP917VKC/128G, SNP917VKC/128VXR
Total capacity128 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S4Rx4 (8Rx4)
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How do I install the 288-pin DDR4 LRDIMM and what step is often missed?

Align the notch on the 288-pin DDR4 LRDIMM with the slot key, press firmly until both retention clips click, then verify the server BIOS recognises the full 128GB at 2666 MHz.

What maintenance or replacement will the 128GB ECC LRDIMM need over time?

The module has no heat spreader and no moving parts; keep server airflow clean and run periodic memory diagnostics — replace only if ECC correctable errors rise or a diagnostic flags a hard fault.

What limit appears first on the 1.2V LRDIMM under sustained heavy workloads?

The CL15 latency at 2666 MHz and the 8-rank 3DS/TSV density set the throughput ceiling; the memory controller will hit bandwidth saturation before the 1.2V power envelope becomes a constraint.

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