Monoprice 100401 3-Feet DB25M/CN36M 25C Mo (100401) Before the advent of printers with USB connections the dominant standard was IEEE 1284 aka the "parallel printer interface" If you have a computer and printer with this interface you can depend on Monoprice to stock the cables you will need to connect them The 25 conductors in this cable provide individual signal connections and shared return grounds for the remaining 8 conductors The connector heads are molded onto the cable and the DB25 end has thumbscrews for securing the connector to the computer while the CN36 end has metal clip receptacles for securing it to the printer