This is an opportunity to have a rare piece of apple history, and a wonderful diagnostic tool for any apple technicians looking to repair vintage machines! The Apple TechStep was a diagnostic tool used by apple repair centers and was never released for use by the public. This particular example comes with diagnostic cartridges and all the necessary cables to connect to the apple computer of your choice. The TechStep listed here is in pristine shape and has virtually no signs of yellowing or aging. Cash only in Redwood Valley.