The 128 kiB of onboard memory keep stored all configurations done by the user, thus allowing him or her to change computers without losing profiles and macros. That way, the Havoc is always able to live up to its namesake. The software can set up to four user profiles (for games, work, leisure browsing, etc.) and record macros. On the default configuration, the button 8 (the lower button above the thumb rest) changes profiles; on other gaming-grade mice, that button is usually located below the wheel or even on the right side; here, as we already described, the left side has three buttons, not the normal two.
The user can set the sensitivity from 100 to 8,200 dpi on four levels. He or she can also turn off the illumination or choose the color (red, green, blue, yellow, pink, sky blue, or white), the intensity, and rhythm (constant, pulsating) of the illumination. Macro recording is very simple, and it is possible to include a time-lapse between commands. For users who like to keep track of all the new configurations, he or she can check the library of profiles and macros stored.