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

A-Tech

A-Tech 1TB (8x128GB) DDR4 2666 ECC LRDIMM 2S4Rx4 Server RAM

SKU CH-J1RS-J3D7E

Eight 128 GB DDR4 2666 ECC LRDIMM modules deliver 1 TB of load-reduced server memory at 1.2 V

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 1TB (8 x 128GB)

  • 1TB total capacity across eight 128GB modules
  • DDR4 2666MHz speed rated at PC4-21300 standard
  • ECC Load Reduced DIMM for data integrity under load
  • 2S4Rx4 octal-rank 3DS/TSV architecture maximises density
  • 2V operation at CL19 latency for efficient performance

1 TB DDR4 LRDIMM kit for servers

This kit delivers 1 TB of DDR4 memory across eight 128 GB load-reduced DIMMs. It is built for servers and workstations that require ECC protection and high-density registered modules. Desktop and laptop systems cannot use these modules.

DDR4 2666 limits capacity and speed scaling

The DDR4 2666 interface caps data-rate at 2666 MT/s and operates at 1.2 V with CL19 latency. Load-reduced topology reduces electrical load on the memory bus, yet total capacity and rank count remain bound by the platform's memory-controller specification.

Verify LRDIMM support and slot count before ordering

Confirm that your server or workstation motherboard lists DDR4 LRDIMM 288-pin modules in its qualified-vendor list and provides at least eight available DIMM slots. Check the manual for population rules, maximum rank-per-channel limits, and any required BIOS version.

How it compares

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

Price $4,604.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
Price per GB $4.60 per GB
Cheaper than about 77% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Server Memory RAM
Model nameA-Tech 1 TB (8 × 128 GB) 2S4Rx4 PC4-2666 V-L
Part numberNE-SS-0711
Total capacity1 TB (8 × 128 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S4Rx4 (8Rx4 3DS/TSV)
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Is the 1 TB kit the only capacity option or are smaller kits available?

The listing covers the 1 TB kit built from eight 128 GB modules. Other kit sizes are not described in this product entry.

What does the 2666 MHz rating mean once the modules are installed in a server?

The modules run at DDR4 2666 (PC4-21300) with CL19 latency at 1.20 V, delivering that transfer rate when the platform supports the speed.

How does the 288-pin DDR4 LRDIMM interface affect maximum capacity and rank limits?

The 288-pin DDR4 LRDIMM form factor with 2S4Rx4 (8Rx4 3DS/TSV) organisation allows eight ranks per module, enabling the 128 GB density per DIMM.

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