The SteelSeries Rival 600 introduced a dual-sensor system at 96 grams wired, pairing the TrueMove 3+ optical sensor with a secondary depth sensor for superior lift-off distance detection. The dual-sensor approach was unique in the gaming mouse market, allowing the Rival 600 to precisely detect when the mouse was lifted and stop tracking instantly. Its ergonomic right-handed shape featured a customizable weight system with 256 possible configurations using removable weights on each side. The split-trigger button design ensured consistent click feel across the entire button surface. The Rival 600 was SteelSeries' most technically ambitious mouse of its era. The dual-sensor concept was ahead of its time, addressing a tracking nuance most players didn't even know existed.