The CT4G4SFS8266 from Crucial Retail is a 4GB DDR4 2666V SODIMM memory module, engineered to enhance the performance of laptops and small form factor PCs. Operating at a speed of DDR4-2666V and designed with a 512Mx64 SODIMM 1Rx8 configuration, it ensures improved system responsiveness and multitasking capabilities. The module uses 260 pins for connectivity, making it compatible with a broad range of DDR4-supporting laptops and compact PCs. Its 1Rx8 organization, which means one rank by eight, provides a balance between speed and latency, optimizing the module for efficiency and performance. Manufactured by Crucial Retail, a trusted name in memory and storage solutions, the CT4G4SFS8266 is built to high standards, ensuring reliability and stability for users who require an upgrade to their system's memory for enhanced computing activities. The module's straightforward installation process and compatibility with mainstream laptop and PC models make it an ideal choice for DIY upgrades, increasing the overall speed and capability of the device without the need for extensive technical knowledge.