CB4GS2666 is a module crafted by Crucial Retail, designed to cater to the memory expansion needs of laptops and other small form factor PCs. This DDR4 SODIMM module, with a 4GB capacity, operates at a frequency of 2666 MHz, providing a significant boost in performance and efficiency for computing tasks. With a configuration of 512Mx64, it's optimized for seamless operation, enabling smooth multitasking and enhanced application responsiveness. The module's 260-pin design ensures compatibility with the latest DDR4-supporting devices, while its specified voltage of 1.2V emphasizes energy efficiency, reducing the power demand on systems. Produced by Crucial Retail, a brand renowned for its high-quality memory solutions, the CB4GS2666 is built with reliability and stability in mind, promising a noteworthy upgrade for users looking to improve their device's performance without compromising on power consumption.