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Green 260-pin DDR4 SODIMM module with black chips

A-Tech

A-Tech 8GB DDR4 2666MHz ECC SODIMM CL19 1.2V 260-Pin Samsung M474A1K43BB1-CTD M474A1K43DB1-CTD Server

SKU CH-A3HY-D70X7

8GB ECC DDR4 SO-DIMM running at 2666MHz with CL19 latency and 1.2V operation for server and workstation laptops

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • ECC protection prevents data corruption in critical workloads
  • 8 GB DDR4 2666 MHz module runs at 1.2 V standard voltage
  • CL19 latency delivers responsive performance for server tasks
  • 260-pin SO-DIMM form factor fits compatible laptop and workstation slots
  • Direct replacement for Samsung M474A1K43BB1-CTD and M474A1K43DB1-CTD modules

What this module is

This is an 8 GB DDR4 2666 MHz ECC SODIMM built to the 260-pin standard and rated at CL19 with a 1.20 V operating voltage. It arrives new and is validated as a direct replacement for the Samsung M474A1K43BB1-CTD and M474A1K43DB1-CTD part numbers.

Who should use it and who should not

It suits servers and workstations that require unbuffered ECC memory in the SODIMM form factor for data-integrity workloads. Systems that need registered DIMMs, non-ECC modules, a different pin count, or capacities beyond 8 GB will not be compatible with this part.

How it fits into a build

The stick plugs into any 260-pin DDR4 SODIMM slot wired for unbuffered ECC operation and runs at the standard 1.2 V without extra cooling. Adding it frees the memory controller from single-channel limits and lets the platform handle larger datasets with error correction active.

How it compares

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

Price $90.99
Pricier than about 58% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $11.37 per GB
Pricier than about 85% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Does my laptop need a 260-pin DDR4 SO-DIMM slot to accept this module?

Yes, the module is a 260-pin DDR4 SO-DIMM and requires a matching slot.

Will this ECC unbuffered SODIMM work if I keep non-ECC memory in the other slot?

Mixing ECC and non-ECC modules usually disables ECC or prevents boot; use identical modules for stability.

How can I confirm the stick is running at DDR4 2666 with CL19 after installation?

Check the memory speed and latency in BIOS or a tool such as CPU-Z; they should show 2666 MHz and CL19.

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