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

A-Tech

A-Tech 16GB DDR4 2666MHz CL19 260-Pin SODIMM Laptop RAM

SKU CH-WSS5-BHZAQ

16 GB DDR4 2666 MHz CL19 260-pin SODIMM module upgrades laptop memory for faster multitasking

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for HP L25264-001
  • 16GB DDR4 module lifts multitasking headroom for demanding workloads
  • 2666MHz CL19 timing delivers responsive data access at standard voltage
  • 260-pin SODIMM form factor fits compatible HP laptop slots directly
  • 20V operation keeps power draw low for mobile efficiency
  • Rigorous quality testing ensures dependable long-term reliability

16GB DDR4 2666MHz SODIMM

This 16GB DDR4 module runs at 2666MHz with CL19 latency and 1.20V operation. It uses a 260-pin SO-DIMM form factor for laptops, notebooks and all-in-one computers. The unbuffered, non-ECC design suits mainstream consumer systems. It serves as a compatible replacement for HP part L25264-001.

Tool-free slot installation

Installation requires opening the laptop chassis and inserting the module into the SO-DIMM slot until it clicks. No drivers or configuration are needed. The main risk is purchasing a module that the system firmware or chipset does not support, which results in a failure to boot or no capacity increase. Verifying the device's qualified vendor list before buying avoids this issue.

Single 16GB module capacity

A single 16GB stick provides ample headroom for everyday multitasking, web browsing with many tabs, office suites and light creative workloads. It becomes a bottleneck when the workload demands more than 16GB of physical memory, such as heavy video editing, large virtual machines or memory-intensive databases. Systems limited to one SO-DIMM slot cannot expand beyond this module.

How it compares

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

Price $75.99
Typical for this category: the median of 2,079 items is $70.99.
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $4.75 per GB
Cheaper than about 70% 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
Product lineCompatible Replacement for HP
Model nameL25264-001
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for HP L25264-001

Questions about this item

How do I confirm the 16GB DDR4 2666MHz CL19 module is running at the correct speed after installation?

Open Task Manager or your BIOS and verify the memory reads 2666 MHz, PC4-21300, CL19 timing and 1.20V.

What comes with the 1x 16GB SODIMM and is anything else required to install it?

The box contains the single 260-pin DDR4 module only; no tools or extra parts are needed for a standard laptop slot.

Should I choose the 16GB CL19 version or a different capacity for my HP L25264-001 replacement?

This listing is the exact 16GB CL19 equivalent for HP part L25264-001; select it when your system calls for that specification.

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