The CT4G3S1067M.M16FKD is a reliable and high-performing 4GB DDR3 SODIMM memory module from Crucial, one of the most respected names in computer memory and storage solutions. With a specification of DDR3-1066, it operates at a frequency of 1066MHz, providing a swift data transfer rate which is ideal for improving system responsiveness and multitasking capabilities. This module features a 512Mx64 configuration, indicating a total of 512 megabits across 64 data paths, which aligns perfectly for use in a wide range of laptop computers and other small form factor devices requiring compact, efficient memory solutions. It is designed for use in systems with 204-pin memory slots, ensuring broad compatibility with a variety of DDR3-supporting laptops and mobile systems. The CT4G3S1067M.M16FKD stands out for its reliability and durability, undergoing rigorous testing to meet Crucial's high standards. It also supports a standard voltage of 1.5V required by DDR3 memory, optimizing power consumption without compromising performance. For users looking to upgrade their system's memory capacity and performance, the CT4G3S1067M.M16FKD offers an excellent balance between quality, compatibility, and affordability, embodying Crucial's commitment to providing high-quality memory upgrades.