This mouse is engineered to be the perfect combination of comfort, control, and convenience. The right-hand optimized design with soft rubberized grips provides superior ergonomic support. Diamond Eye optical technology provides unmatched accuracy, acceleration control and tracking precision. Its five customizable buttons can be easily programmed to launch favorite applications, navigate websites and more. Mouse Technology: Optical; Connector/Port: PS/2; USB; Left/Right Hand Use: Right; Buttons: 5; Programmable; Scroll.