Gaming Mouse G400 delivers rock-solid performance for when your sights are set on victory. A 3600 dpi optical sensor provides precision targeting and pinpoint accuracy, while in-game dpi switching lets you change the mouse's tracking characteristics to match the situation. Go from pixel-precise targeting (400 dpi) to lightning-fast maneuvers (up to 3600 dpi) without ever having to interrupt play. Full-speed USB communicates with the PC up to 1000 times per second for a nearly instantaneous response and super-smooth movement in games. Physical mouse movements translate to the same amount of cursor movement regardless of speed, and you get consistent tracking at any hand speed. Sculpted comfort grip, low-friction feet and eight programmable buttons keep you comfortable and in command. Optical gaming mouse requires a USB port, a Windows-based PC and is compatible with Windows XP, Windows Vista and Windows 7.