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Crucial 4GB DDR4 2666 MHz SO-DIMM Memory Module

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Product details

Management number 241239986 Release Date 2026/07/17 List Price US$23.20 Model Number 241239986
Category
Overview

The Crucial CT4G4SFS8266 is a 4GB DDR4 SO-DIMM memory module designed to enhance the performance of laptops and small form factor PCs. Operating at 2666 MHz with a CAS latency of 19, it delivers faster application loading and smoother multitasking. Its low 1.2-volt power consumption helps extend battery life, making it a practical upgrade for users who need responsive computing on the go.

Key features
  • 4GB capacity that provides additional memory for improved multitasking and application responsiveness
  • 2666 MHz data rate that speeds up loading times and switching between programs
  • CAS latency of 19 to maintain quick response times during heavy workloads
  • Single rank, unbuffered, and non-ECC design for straightforward compatibility with most consumer laptops and compact desktops
  • Low voltage operation at 1.2V to reduce power consumption and heat generation, benefiting battery life and system stability
  • Easy installation process requiring no software or configuration changes, suitable for users with minimal technical experience
  • Manufactured by Micron, ensuring quality and reliability backed by decades of memory expertise
  • Limited lifetime warranty providing long-term support and peace of mind
Key specs
  • Memory type: DDR4 SO-DIMM
  • Capacity: 4 GB
  • Speed: 2666 MHz
  • CAS latency: 19
  • Voltage: 1.2 V
  • Rank: Single rank
  • Buffered/Registered: Unbuffered
  • Error correction: Non-ECC
  • Pin count: 260-pin
Installation and setup

Installing this memory module is straightforward and can be completed in minutes. Simply open your laptop or small form factor PC, locate the 260-pin DDR4 SO-DIMM slot, and insert the module at a slight angle until it clicks into place. No additional drivers or software adjustments are necessary, making it accessible for users who have never upgraded memory before.

Ideal uses and environments

This memory upgrade is well suited for students, remote workers, and travelers who rely on laptops for research, video conferencing, and photo editing. It fits well in systems that need a boost in multitasking capability without increasing power consumption significantly. The module is a strong choice for everyday computing tasks where smooth performance and energy efficiency are priorities.


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