The X50 HALO Series optical Trackerball™ incorporates an illuminated ring around the ball to enable the user to locate the trackball in low light environments and offers an ideal solution for applications where a backlit ball would be too obtrusive. Its optical tracking engine provides accurate cursor motion at all speeds an 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.