G9X IV Galactic Black specifications 6 Macro-ableª Optical Gaming Mouse with 512KB on-board memory CPI switching on-the-fly [Default]: 400/800/1600/3200cpi Software CPI setting: as low as 400cpi up to 6400cpi Adjustable polling rate(/second): 125Hz/500Hz/1000Hz Frame rate: 6600fps Acceleration: 20G Advance Optical sensor: PixArt 3305 Total 6 Buttons with 2-Way Click scroll [Save Up to 7 Macros in 5 available profile] High performance tracking speed: up to 160 inches per second 7-level weight adjustable system [2.6g x 7 metal piece] Mouse size: L125 x W82 x H40mm