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

A-Tech

A-Tech 4GB DDR4 2666MHz SODIMM CL19 1.2V 260-Pin Laptop RAM

SKU CH-Z4V1-ENW3Y

4GB DDR4 2666MHz SODIMM laptop memory module with CL19 latency and 1.2V operation

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible

Capacity 4GB

Speed DDR4 2666 (PC4 21300)

CAS Latency CL19

  • Boosts system responsiveness with 2666 MHz DDR4 speed
  • Low 1.2 V operation reduces laptop power draw
  • CL19 latency supports smooth multitasking performance
  • 260-pin SO-DIMM fits standard DDR4 laptop slots
  • Rigorously tested for reliable operation in notebooks

4GB DDR4 SODIMM for Laptops

This module adds four gigabytes of DDR4 memory to compatible laptops, notebooks and all-in-one PCs. It uses the 260-pin SO-DIMM form factor and runs at the standard 1.2V voltage. The kit suits users who need a straightforward capacity increase for everyday workloads.

DDR4 2666 speed ceiling

The stick operates at DDR4 2666 (PC4-21300) with a CAS latency of CL19. Systems that only support lower DDR4 speeds will down-clock the module automatically. Platforms requiring ECC or registered memory cannot use this unbuffered non-ECC design.

Single 4GB module constraint

Only one 4GB rank is provided, so total capacity rises by exactly that amount. Buyers whose chassis have a single SODIMM slot or whose workloads demand more than four gigabytes should verify slot count and required capacity before ordering.

How it compares

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

Price $27.99
Cheaper than about 76% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $7.00 per GB
Pricier than about 61% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Laptop Memory RAM
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 4GB module or add a second stick for dual-channel?

This listing is a single 4GB stick; adding a matching module enables dual-channel bandwidth on supported laptops.

What does the 2666MHz rating deliver in daily use?

The DDR4 2666 speed (PC4-21300) shortens load times and improves responsiveness when multitasking.

Will the 260-pin SODIMM fit my laptop's DDR4 slot?

Yes, the 260-pin DDR4 SO-DIMM form factor is the standard for compatible laptops and all-in-ones.

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