XBee & XBee-PRO ZB adapters provide wireless connectivity through mesh networks to electronic devices in legacy wired applications. They utilize ZigBee PRO technology for robust self-healing networks. The adapters are available in various interfaces like RS-232, RS-485, USB, and I/O and can be powered by batteries or mains. They integrate with Digi's Drop-in Networking solutions for flexible and scalable communication between devices.