Your gaming experience just got a whole lot better with the Razer DeathAdder 2013 Gaming Mouse. This mouse delivers a new level of power and performance with the world's first 6400dpi 4G Optical Sensor giving you the ultimate in control when it comes to your gaming experience. Plus, with the improved ergonomic design featuring rubber side grips, you can have better control of your mouse even during the most intense game. Staying up to date with the latest in software drivers and firmware updates is a breeze with the Razer Synapse 2.0, which also allows you to save your individual settings to a cloud server so they're always there when you need them most.