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Green rectangular circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 16GB DDR4 2666MHz CL19 ECC SODIMM 260-Pin 1.2V laptop RAM

SKU CH-17AJ-2XRVQ

A 16GB DDR4 2666MHz ECC SODIMM module with CL19 latency and 1.2V operation for compatible laptops and workstations

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 16 GB capacity for heavier multitasking
  • DDR4 2666 MHz speed for faster data transfer
  • ECC unbuffered design detects memory errors
  • CL19 latency with 1.2 V efficient operation
  • 260-pin SODIMM fits compatible laptop slots

16GB DDR4 2666MHz ECC SODIMM for servers

This 16GB DDR4 2666MHz CL19 ECC SODIMM uses 260-pin layout and 1.2V operation. It targets server and workstation laptops that require error-correcting memory for data integrity. The module is unbuffered and built with major-brand chips for stable operation under sustained loads. It replaces IBM-Lenovo part numbers 4X70U55668 and 4X70U39095 directly.

Check slot count and ECC support before ordering

Verify that your laptop accepts 260-pin DDR4 SODIMMs and explicitly supports ECC unbuffered memory at 2666MHz. Confirm the maximum capacity per slot and total system limit in the manufacturer documentation. Systems without ECC capability will not benefit from the error-correction feature and may not boot with this module installed.

Upgrades non-ECC or lower-capacity DDR4 SODIMMs

The jump is worth it when your workload demands error correction for databases, virtualization or scientific computing on a mobile workstation. It also benefits users moving from 8GB or 4GB modules to 16GB per slot for larger datasets. Buyers who need non-ECC memory or speeds above 2666MHz should look elsewhere.

How it compares

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

Price $158.99
Pricier than about 72% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $9.94 per GB
Pricier than about 79% of the 1,886 comparable items (median $5.94 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Total capacity16 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 the box contain one 16GB stick or a pair, and do I need anything else to install it?

The package includes a single 16GB DDR4 2666MHz CL19 ECC SODIMM module; no extra parts are required for installation.

How do I decide between this 16GB CL19 ECC module and other capacities or speeds listed?

Choose this 16GB CL19 ECC SODIMM when your laptop or workstation specifically requires ECC unbuffered memory at 2666MHz and has a free 260-pin slot.

What does the 2666MHz PC4-21300 rating actually deliver once the module is seated in a real machine?

The module runs at 2666MHz with CL19 latency at 1.20V, providing ECC error correction for data integrity in compatible server or workstation laptops.

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