Pfaff extention cable Pfaff cable for the 7570 has a DIN 8 to fit into the 7570 and the other end is a black box with a DB25 (female) that goes to the PC computer. Take your existing cable along to make sure it all fits together. ------MAC For the Mac there is an addtional very short cable that converts the DB25 to mini Din 8 to fit the Mactintosh's modem or phone port. The very short cable is nothing more than a 56K modem cable (DB25 male to mini Din 8). To extend, simply purchase at Staples, Radio Shack, etc. a RS232 extension cable [make sure it is a SERIAL RS232 cable ... not printer or anything else] with DB25 to mini Din 8 in desired length. -----PC To extend, simply purchase at Staples, Radio Shack, etc., a RS232 SERIAL cable (DB25 male to DB25 female) in the length desired.