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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 8GB DDR4 2666MHz CL19 260-Pin SODIMM 1Rx8 CT8G4SFS8266 Laptop RAM

SKU CH-9NFA-A0KN8

8GB DDR4 2666MHz laptop memory module with CL19 latency and 1.2V operation

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 8GB DDR4 capacity speeds up multitasking and load times
  • 2666MHz PC4-21300 frequency delivers responsive system performance
  • CL19 latency at 1.2V ensures stable efficient operation
  • 260-pin SODIMM form factor fits compatible laptop slots
  • Major-brand chips tested for reliable long-term dependability

8GB DDR4 2666MHz laptop memory

This single 8GB SODIMM module runs at 2666MHz with CL19 latency and 1.20V operation. It uses 260-pin DDR4 SO-DIMM form factor with unbuffered non-ECC architecture. The 1Rx8 organisation suits mainstream laptop and all-in-one upgrades.

Crucial CT8G4SFS8266 compatible replacement

The module is validated as a direct equivalent for the Crucial CT8G4SFS8266 part number. Major-brand DRAM chips are used throughout and every unit undergoes quality-assurance testing before shipment. This ensures reliable drop-in compatibility for supported systems.

Unbuffered 260-pin SO-DIMM build

Standard 1.2V DDR4 voltage keeps power draw low for mobile platforms. The 260-pin edge connector matches current-generation laptop slots without adapters. Buyers needing ECC, registered buffering, higher capacities or different speeds must select alternative modules.

How it compares

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

Price $50.99
Cheaper 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 $6.37 per GB
Pricier than about 55% 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 capacity8 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

Questions about this item

Will the CL19 timing require any adjustment or replacement over time?

No, the CL19 timing is fixed on the module and does not drift; the stick runs at 1.20 V and needs no maintenance or future replacement.

What limit appears first when the SODIMM runs continuously at 2666 MHz?

The 1Rx8 organisation and CL19 latency set the bandwidth ceiling before thermal or voltage limits are reached.

How much heat and power does the 1.20 V module produce during all-day use?

At 1.20 V the DDR4 SO-DIMM draws minimal power and generates low heat, staying within standard laptop thermal envelopes.

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