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Green rectangular DDR4 SODIMM module with black memory chips and gold edge connector

A-Tech

A-Tech 8GB DDR4 2666MHz CL19 1.2V SODIMM laptop RAM

SKU CH-GY3C-2ZHCW

8GB DDR4 2666MHz CL19 1.2V SODIMM laptop memory upgrade with 260-pin form factor for faster multitasking and improved system responsiveness

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for Crucial CT8G4S266M, CT8G4SFRA266.
  • Boosts system responsiveness with 8GB DDR4 2666MHz speed
  • Low 1.2V operation cuts power draw and heat
  • CL19 latency supports smooth multitasking on laptops
  • 260-pin SO-DIMM fits standard DDR4 notebook slots
  • Tested replacement for Crucial CT8G4S266M and CT8G4SFRA266.C8

8GB DDR4 2666MHz SODIMM for laptop upgrade

This 8GB DDR4 2666MHz SODIMM module is designed for laptop, notebook and all-in-one computers needing a memory increase. It operates at PC4-21300 speed with CL19 latency and standard 1.2V voltage. The unbuffered non-ECC stick suits everyday multitasking and general productivity workloads.

Direct replacement for Crucial CT8G4S266M

The module matches the specifications of Crucial part numbers CT8G4S266M and CT8G4SFRA266.C8, providing a compatible alternative. Quality assurance testing is performed on each unit to verify dependable operation. No heat spreader is included on this 260-pin SODIMM.

Verify DDR4 SO-DIMM support

Check that your system accepts DDR4 SO-DIMM memory and supports 2666MHz speed at 1.2V. Confirm the maximum capacity per slot and total memory limit in your device documentation. Ensure an available 260-pin slot exists for this single 8GB module.

How it compares

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

Price $42.99
Cheaper than about 63% 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 $5.37 per GB
Cheaper than about 58% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Crucial
Model nameCT8G4S266M, CT8G4SFRA266.C8
Total capacity8 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 Crucial CT8G4S266M, CT8G4SFRA266.C8

Questions about this item

Will the CL19 timing on this DDR4 SODIMM need any adjustment or replacement over time?

The CL19 latency is a fixed hardware characteristic of this DDR4 module; no timing adjustments or future replacements are required for the memory itself.

What limit appears first when this 2666 MHz DDR4 runs sustained workloads?

The 2666 MHz speed rating and CL19 latency define the performance ceiling; the module will not exceed these specifications under continuous use.

How much heat or power does this 1.2 V DDR4 SODIMM produce during all-day operation?

Operating at the standard 1.2 V DDR4 voltage without a heat spreader, the module draws minimal power and generates low heat typical for laptop SO-DIMMs.

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