The X50 Series optical Trackerball™ is an extremely high specification, contact-less device, ideal for the most demanding of cursor control applications. Its optical tracking engine provides accurate cursor motion at all speeds and on virtually any ball, combining the benefits of solid state sensing (no moving parts except the ball) with the aesthetics, functionality and performance associated with the Cursor Controls product range. The trackball has been designed to be back of panel mounted as part of OEM keyboards and consoles.