This is a really good controller if you want to run a pertec tape deck with a formatter. This puts out the classic 100 pin formatted pertec that can be run by any pertec controller. There is a converter from this 100 pin connection to the dual 50's that became predominate when cipher popularized them. I have one of the pertec adapters somewhere if someone needs the pinout if you don't already have the 100 pin cable :-) Datum Inc. Magnetic Tape Controller 5091 Item number: 5816293974 Jim