MUX Switch, or multiplex switch, is a special technology used in some laptop configurations that allows switching between integrated and dedicated graphics cards. This provides users with the flexibility to choose between higher performance for gaming and graphics-intensive tasks using a dedicated graphics card and longer battery life when using a less demanding integrated graphics card for common tasks such as web browsing or working with documents. MUX Switch can be implemented at the hardware or software level and its availability and operation may vary depending on the specific laptop model.