This translation is based on the description of what it is that follows and the first two words (scheda porta, as in scheda porta USB which really does exist, Google it and buy one). In the past you had serial and parallel ports for connecting keyboards, monitors and printers to computer. Today USBs have taken over. The port is the socket which is part of a printed circuit board with all the necessary integrated circuits on it. Of course the "conductors" in this case will carry tiny currents, used mainly to carry communication signals rather than power. I think the author was adding his/her own unique personal touch by adding "conduttori", which of course must feed into every electronic port.