This converter will allow users with existing Windows® - based Model 5 Software and computers without a serial port to connect to their Model 5 Provers. The Converter Kit consists of a converter cable and Model 5 Upgrade CD.  Minimum System requirements are a computer with 500MHz processor, 128MB RAM, 400MB hard disk space, Windows® 98, XP professional, an open USB port, and the Windows® - based Model 5 Software.