The patent-pending USB to Serial DB9 SuperBooster Wall Plate solution provides a connection between USB and the traditional RS-232 serial port while conquering normal USB length limitations. This item extends the distance of a serial device to a host computer up to 150ft via USB so you can place your devices (such as a cellular phone, PDA, digital camera, modem, scanner, bar code reader, printer, or ISDN terminal adapter) exactly where you want them!This plug-and-play device consists of a transmitter unit and receiver unit incorporated into two, single-gang Decora -compatible wall plates. The transmitter/receiver pair is connected via standard Cat5, Cat5E, or Cat6 UTP cable allowing for easy in-wall installation. This makes for a clean, finished installation that is important for home owners, classrooms, offices and anywhere there cannot be visible cables lying around. Use pre-terminated network cables or pull un-terminated cable and use the included tool-less IDC RJ45 connectors. The USB to DB9 Serial SuperBooster Wall Plate is bus-powered so no external power source is required.