FT232RL USB Interface Adapter Similar to the Digi XBee ® footprint shown controlling a 16-Channel Relay Controller Board Available from https://store.ncd.io/product/usb-communications-module-ft232rl-zusb/
Drivers Available from FTDI: http://www.ftdichip.com/FTDrivers.htm
Base Station Software: ncd.io/start
Digi.com offers a wide variety of XBee Interface modules for industrial wireless applications. Digi XBee® devices are compatible with NCD products.