Kailh Switch refers to a brand of mechanical switches commonly used in keyboards. They are known for their durability and responsiveness, making them popular among gamers and typists. Kailh offers a variety of switch types, including tactile, linear, and clicky, each providing a different feel and sound when pressed. These switches are often compared to Cherry MX switches, another well-known brand, but Kailh switches are generally more affordable. Many keyboard enthusiasts appreciate the customization options available with Kailh switches, as they can be found in various colors and designs, catering to different preferences and styles.