The VENTUS R features a PIXART PMW-3310 optical sensor with up to 5000 DPI that offers superior tracking across the widest variety of surfaces; and comes equipped with an ARM based 32bit microcontroller with 32KB flash memory, 5 programmable keys for 5 different gaming profiles and 256kb of on-board memory to meet all the performance needs of the gaming enthusiast. With a unique aerodynamic engineered air-through ventilation system coupled with smart ergonomic design, a perfect balance is struck from hand-to-mouse to create the most optimal touch feel user experience.