Since its beginning, Cherry Corporation has excelled at turning things on, setting things in motion, and getting things going. As a worldwide leader in the design, development and manufacture of automotive switches and modules, computer keyboards, switches and controls, the company continues to focus on providing advanced, technology-based solutions via an integrated network of resources. PRODUCT FEATURES: Optical sensor for precise movement of the mouse pointer; PC- and MAC-compatible due to USB interface; Precise performance with 800 dpi resolution; Easy scrolling with the PowerWheel; Elegant design, ideally suited for right- and left-handed users; Connection and disconnection during operation with USB connector; Adapter for PS/2 interface.