the calculators can also communicate with the pcs via a sb-87 or sb-88 cable. both cables have a 2.5 mm stereo jack at one end and a db-9 connector for the sb-87 and a usb port for the sb-88 at the another end. the communication is in the same form and speed as in the calculator to calculator communication. the pc programs that deal with the communication are the fa-123 and fa-124 (newer version) pc-link, where transfers of data and screenshots are managed.