Master BB+ allows you to connect a variety of input devices to over 2,000 different terminals and PCs. Programming the Master BB+ is easy and can decode up to 21 different barcode symbologies. The Master BB+, the world's most popular decoder, is a smaller, less expensive version of the Master B+, with a single input port and a communications port. It uses the same methods for programming barcode symbologies. Input data can come from a barcode reader, magnetic stripe readers, or any RS-232 auxiliary device