SteelSeries has designed a wired gaming mouse for every gamer with the SteelSeries Rival 105. Rival 105 is custom-engineered for gaming, featuring a custom S3059-SS optical sensor and a right-handed universal ergonomic design based on the legendary SteelSeries Kana shape for all grip styles. With a guaranteed 20-million click rating and a durable, lightweight 80g construction, the Rival 105 delivers comfortable, long-lasting performance. Plus, Prism RGB illumination with GameSense reactive illumination and lighting sync, six programmable buttons and on-board memory combine to deliver the perfect gaming mouse! Features: Custom S3059-SS sensor, 4000 DCPI, 140 IPS. Guaranteed 20-million click mechanical switches.. Prism RGB Illumination, (Two Area, One Zone on wheel + logo). Two side buttons, on left, Dedicated CPI button. DPI 4000. Weight 87.5g.