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Eight green DDR4 RDIMM modules in static bags

A-Tech

A-Tech 128GB (8x16GB) DDR4 2666 ECC RDIMM 2Rx4 server RAM

SKU CH-9XYJ-CQXNG

Eight 16 GB DDR4 2666 MHz ECC registered DIMMs totalling 128 GB for servers and workstations

  • Capacity128GB (8 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered

Capacity 128GB (8 x 16GB)

  • 128 GB total capacity across eight 16 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300
  • ECC registered design detects and corrects memory errors
  • Dual rank 2Rx4 organisation for higher density per slot
  • Standard 1.2 V DDR4 voltage for efficient server operation

128GB DDR4 ECC RDIMM kit for servers

This 128GB kit contains eight 16GB DDR4 2666 MHz registered DIMMs built for servers and workstations that require ECC memory. Each module is a 2Rx4 dual-rank design operating at 1.2V with CL19 latency. The kit is not compatible with desktop or laptop computers.

Thermals noise and power draw

Registered ECC modules run at the standard DDR4 voltage of 1.20V, keeping power draw predictable in multi-DIMM server configurations. The dual-rank x4 organisation distributes electrical load evenly across the memory channels. No active cooling is required beyond normal server airflow.

Upgrades from smaller ECC kits or non-ECC memory

This kit replaces smaller-capacity registered ECC kits or non-ECC modules in systems that support DDR4 RDIMMs. The jump is worth it when workloads demand 128GB of error-correcting capacity for virtualisation, databases or large datasets. Verify your platform's qualified vendor list before installing.

Highlights

  • 128 GB total capacity across eight 16 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300
  • ECC registered design detects and corrects memory errors
  • Dual rank 2Rx4 organisation for higher density per slot
  • Standard 1.2 V DDR4 voltage for efficient server operation

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 16GB 2Rx4 PC4-2666V-R
Capacity128GB (8 x 16GB)
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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Questions about this item

How do I install the 288-pin DDR4 RDIMM modules in the correct server channels?

Power down the server, open the chassis, align each 288-pin module with the DDR4 RDIMM slot, press firmly until the retention clips lock, then follow the motherboard manual for the proper channel population order for 8 modules.

Will the registered ECC chips or the 1.20V voltage regulation need replacement after extended operation?

The registered ECC DRAM and on-board voltage regulation are solid-state components with no moving parts; they do not require scheduled replacement under normal server workloads.

At what point does the CL19 latency at 2666 MHz become the bottleneck during sustained heavy workloads?

Under continuous full-bandwidth loads the CAS-19 timing at 2666 MHz limits random-access throughput before thermal or voltage limits are reached.

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