Probably the reason why keyboards were developed so much, so that gamers could make use of the best available technology to help them perform better in the digital competitive sphere. The holy grail of keyboards are the mechanical ones as they are more tactile, just pressing the keys is satisfying along with the sound as it functions with a clean snap!
Slated as gaming keyboards for a marketing edge but essentially they are good quality keyboards that are durable, made from heavy materials and most important of all feel good when you use them. Unlike gaming mouses the gaming keyboard is still closer to what a keyboard's original design was another thing giving away what it really is, a good keyboard. A lot come in black and have lights that make it easier to see the keyboard in a low light environment, which is often the case with gamers as that makes the screen a centre of focus while you play. The coloured lights imbedded into the keyboard make it easier to navigate without having to particularly look at the keys. With extra keys meaning you don't need to open an extra window to figure out a setting like volume and brightness, also coming with USB ports or headphone jacks built-in!
Usually connecting to the computer through a USB cable but also available with wireless connectivity in case you are at more of a distance from a larger screen or need to move around the room while you work. Some of the top known brands are LogiTech, Razor, SteelSeries and Corsair amongst many, many more.