The SteelSeries Xai was a pioneering ambidextrous gaming mouse from 2009 that introduced features years ahead of its time, including on-board memory profiles, CPI adjustment, and configurable lift-off distance at 100 grams wired with the Avago ADNS-9500 laser sensor. The Xai was one of the first mice to treat competitive gamers as a dedicated audience with specific technical needs rather than just consumers who wanted flashy aesthetics. Professional Counter-Strike 1.6 players adopted the Xai alongside the Sensei, establishing SteelSeries as a trusted brand in the esports ecosystem. Its ambidextrous shape was clean and inoffensive, working for a wide range of grip styles without excelling at any particular one. The Xai was a technology-forward mouse at a time when most gaming mice were still simple optical devices with minimal configuration.