Trackball with PS/2 cable

Made by Clearly Superior Technologies

• CST 280 Trackball. Large ball for precise fingertip control.  Three easy access buttons with 1,000,000 cycle microswitches.  Colorful design ideal for encouraging young users.   Older discontinued item.  A great desktop trackball for your child’s home computer. Installs using PS/2 or USB interface port. White case, Red, Blue, Green buttons. Yellow ball.   Comes with PS/2 cable and quick start guide.