Mechanical switches are a type of electrical switch that uses a physical mechanism to open or close a circuit. They are commonly found in keyboards, where each key has its own individual switch, providing tactile feedback and durability. These switches come in various types, such as Cherry MX and Kailh, each offering different feel and sound characteristics. The design of mechanical switches allows for a more satisfying typing experience compared to traditional rubber dome switches. Users often prefer them for gaming and typing due to their responsiveness and longevity. Mechanical switches can also be customized, making them popular among enthusiasts and gamers alike.