https://www.pcgamer.com/you-can-extend-the-life-of-this-gaming-mouse-by-swapping-out-the-switches/

Asus announced a new mouse under its Republic of Gamers (ROG) brand, the ROG Gladius II Origin, and if you manage to wear this thing out you're doing some serious clicking. That's because Asus includes an extra set of Omron switches that doubles the rated 50-million click lifespan to 100 million clicks.

The extra set of switches offer a different click resistance, which is also why they're included. However, Asus is pitching both angles (longer life, different feel), along with a "push-fit" socket design that is supposed to make it easy to swap switches.