Here is a nice complete B128 system. In addtion to everything else The book that comes with this is very useful and the software included shows that there is useful software and that the person actually used this computer. Also included is the best display for a B series system, better than the color monitors made by CBM for a monochrome monitor. The USI is the recommended display for B series computers and hard to find. https://www.ebay.com/itm/Commodore-B128-80-System-from-Protecto-with-8050-Dr... Bill