Dota 2's mouse preferences diverge significantly from the FPS-dominated landscape, with Razer leading at 44% brand share primarily through the DeathAdder line rather than the Viper. This is telling — Dota pros don't need ultralight flick machines; they need comfortable, reliable mice that won't cause wrist strain during games that regularly exceed 40 minutes. The DeathAdder V3 Pro and V2 variants combine for a significant presence, as Dota pros favor the ergonomic comfort of the DeathAdder for these marathon sessions. Unlike FPS titles, the top mouse in Dota 2 only commands 9%, showing extreme fragmentation with no single model dominating. HyperX holds 14% share — their strongest presence in any title — reflecting the brand's long-standing relationships with Dota teams in CIS and Asian regions. With only 28% wireless adoption, Dota 2 has the lowest wireless rate of any game we track, suggesting pros here are the least concerned about cutting-edge peripheral technology. Many Dota pros openly say they'd use whatever mouse is comfortable — the idea of optimizing your mouse for a few milliseconds of advantage, while crucial in CS2, is almost irrelevant in a game decided by macro strategy and teamfight execution.