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Eight green DDR4 DIMM modules in a row

A-Tech

A-Tech 128GB (8x16GB) DDR4 2666 ECC RDIMM 1Rx4 server RAM

SKU CH-F5MC-PAA46

Eight 16 GB DDR4 2666 registered ECC modules add 128 GB of server memory with single-rank x4 organisation and CL19 latency

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 128GB (8 x 16GB)

  • 128 GB total capacity from eight 16 GB modules
  • ECC registered design protects data integrity in servers
  • Single-rank 1Rx4 layout optimises channel efficiency
  • DDR4 2666 MHz speed with CL19 latency
  • 2 V standard voltage reduces power draw

Server memory kit

This A-Tech kit supplies 128GB of DDR4 ECC registered memory across eight 16GB modules running at 2666 MHz with CL19 latency. It is built for servers and workstations that require registered DIMMs and error-correcting code for data integrity.

Registered DIMM requirement

The modules suit administrators upgrading compatible DDR4 server or workstation platforms that accept 1Rx4 registered memory. They will not work in desktop or laptop computers that use unbuffered non-ECC DIMMs.

288-pin installation

Each 288-pin DIMM seats in a standard DDR4 registered slot; follow the system manual for correct channel population and seating order. The most common issue is installing these registered modules in a consumer board that only supports unbuffered memory.

How it compares

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

Price $1,017.99
Pricier than about 81% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $7.95 per GB
Pricier than about 56% 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 16 GB 1Rx4 PC4-2666 V-R
Total capacity128 GB (8 × 16 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

What type of system must I already have for this 288-pin DDR4 2666 ECC RDIMM kit to work?

You need a server or workstation that supports DDR4 registered ECC memory; desktop and laptop platforms will not accept these modules.

Can I keep my existing DDR4 2666 registered ECC DIMMs and add this 1Rx4 kit alongside them?

Yes, provided your platform accepts mixed ranks and the total capacity stays within the motherboard and CPU limits; all modules will run at the lowest common speed and voltage.

How can I confirm the kit is running at the rated 2666 MT/s with CL19 latency after installation?

Check the memory speed and timings in the system BIOS or UEFI, or use a hardware information utility inside the operating system to verify DDR4 2666 and CL19 values.

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