I got several from Ebay that were USB for the 718 that were less than $5 each. Came with disk and works great with our 718's. On 2/27/2012 7:10 PM, Jim n4uoz wrote: > CAT-serial cable -- John Galvin - N5TIM www.n5tim.info for Public Service Info www.collinares.net/ www.garlandraces.net