Connect your printer, modem or other DB25 serial/parallel devices to a switchboxDB25 Male to Male cables from Cables To Go are designed for RS-232 serial or parallel applications. Easily connect your printer, modem or other DB25 device to a switchbox. All 25 lines are wired straight through pin-to-pin for ease of compatibility. Each cable is constructed with molded connectors and foil shielding for EMI/RFI protection.