For some video games, using a normal mouse is generally more than enough to get the job done, but there are games like MMORPGs where you might need a lot of skills in the game, which means that your regular mouse and even your keyboard might not be good enough.
This is where gaming mice like the Razer Naga Trinity comes in, where it sports a whole bunch of additional buttons on its side which you can quickly press in the heat of battle. This is faster and more ergonomic compared to the F-keys on your keyboard because your hands will be on the mouse already.
The best part of the Naga Trinity is that the side panel of the mouse can be swapped around, meaning that if you don’t need that many buttons, you can swap it out to a regular two button design, or you can also opt for a circular design instead of a numpad layout. The mouse is currently enjoying a pretty hefty discount of 30%, bringing its price down from $99.99 to $69.99, so it might be worth checking out.