If I remember correctly, the G keys can be programmed to another key for ease of access when playing games. For example, if a game you're playing requires frequent use of the P letter key, you can assign key G4 to emulate key P using Corsair's keyboard programming software (which obviously works only with certain Corsair keyboards). Keep in mind I have not bothered to research this, I was told by a friend with a K95, so I may be completely wrong. Also about the key switches (which I'm obviously late to comment on) : There are 4 different types of Cherry MX key switches - black, red, blue and brown. the black and red switches are made with gaming in mind, whereas blue and brown switches are made with typists in mind. This guy explains it very well: http://www.furiouspaul.com/articles/cherry-mx-keyboard-switches.html TL;DR - Brown switches are apparently better for gaming, so if that's what the keyboard is for, you've made a good choice.