An RS-232 Cable wired straight through. (Darta Switch cable) works perfectly. On a lisa you might have to clip the center pin on the row of 13 pins. What is the model # on the drive.? If it ends in 050 then you have a 5mb drive. If it ends in 100 then you have a 10 meg drive! e-mail me. Regards, Merlancia@aol.com zanzore@aztec.asu.edu