High-performance memory module: The RIMLANCE 4GB DDR3 1066MHz SODIMM ensures your notebook operates at peak efficiency, providing seamless multitasking and faster data processing. Optimal voltage for stability: Operating at 1.5V, this memory module maintains system stability and reliability, reducing the risk of crashes and data loss during intensive tasks. Enhanced compatibility: Designed to be compatible with a wide range of notebooks, the RIMLANCE 4GB SODIMM is a versatile upgrade that fits easily into most systems, enhancing their performance instantly. Efficient data handling: With a PC3-8500 rating and 2RX8 configuration, this memory module ensures efficient data handling, enabling smoother operation of applications and faster boot times. Single module convenience: Sold as a single 4GB module, this product offers a straightforward upgrade solution for users looking to boost their notebook's memory capacity.