Unlike membrane keyboards, mechanical keyboards have a spring and switch under each keycap. Not only is it a sign of premium keyboards, but they are also the preferred choice for a lot of PC gamers. A lot of premium mechanical keyboards are also customisable and modular in design. The aforementioned switches can usually be swapped out or upgraded, with some people opting for more tactile and responsive keys just for W, A, S and D keys. These are used for movement with the mouse being used for controlling a game's camera. We're going to look at the Ducky One 3 full-sized mechanical keyboard in this example, which features hot-swappable Cherry MX switches.