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

A-Tech

A-Tech 256GB (2x128GB) DDR4 2666 ECC LRDIMM 2S4Rx4 Server RAM

SKU CH-GA8D-7EHZ0

256 GB dual-channel DDR4-2666 ECC LRDIMM kit with two 128 GB octal-rank modules at CL19 and 1.2 V

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity from two 128 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300
  • ECC Load Reduced DIMM corrects errors and reduces bus load
  • 288-pin DIMM form factor for DDR4 server platforms
  • CAS latency CL19 at standard 1.20 V operation

Server kit capacity and purpose

This A-Tech kit supplies 256 GB of DDR4 server memory as two 128 GB LRDIMM modules. It is built for DDR4-compatible servers and workstations that require ECC load-reduced DIMMs and will not work in desktop or laptop systems.

Sustained-load behaviour

The modules run at 2666 MHz with CL19 latency and 1.20 V, using 3DS/TSV octal-rank organisation to keep electrical loading low on the memory bus. ECC and load-reduced buffering maintain data integrity and signal stability during extended, high-capacity workloads.

Pre-purchase checks

Verify that your platform supports DDR4 288-pin LRDIMMs at 2666 MHz and accepts 2S4Rx4 (8Rx4) rank configurations. Consult the system manual for correct slot population rules and maximum supported capacity per channel before ordering.

Highlights

  • 256 GB total capacity from two 128 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300
  • ECC Load Reduced DIMM corrects errors and reduces bus load
  • 288-pin DIMM form factor for DDR4 server platforms
  • CAS latency CL19 at standard 1.20 V operation

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 256GB (2x128GB) 2S4Rx4 PC4-2666V-L
Part NumberNE-SS-0709
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank2S4Rx4 (8Rx4 3DS/TSV)
Multi-channel KitDual Channel Kit
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips

Other versions of this model

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Questions about this item

How much power does each 128GB module draw at 1.2V during continuous server workloads?

Each module operates at the standard DDR4 voltage of 1.2V; exact power draw depends on the server platform and workload intensity.

What server platform and memory slots are required to install this 256GB DDR4 2666 LRDIMM kit?

This kit requires a DDR4 server or workstation motherboard with 288-pin DIMM slots that explicitly support Load Reduced ECC memory at 2666 MHz.

Can these octal-rank 128GB LRDIMMs be mixed with existing DDR4 RDIMMs in the same server?

Mixing LRDIMMs with standard RDIMMs is not supported; all populated slots must use the same Load Reduced ECC module type for stable operation.

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