The Corsair K100 RGB has many extra features. All of its keys are macro-programmable, including the volume wheel, profile switching button, and media keys. It also has dedicated macro keys on the left side of the board. It features a unique iCUE wheel that lets you adjust brightness, rewind or fast forward media, scroll through applications, and zoom in or out of windows, but you can also remap all of these to other actions. The RGB lighting around the wheel changes color as you cycle through the different functions so you know exactly which one is active.