UB232R, USB Mini-B FT232R Evaluation Board. The UB232R is the smallest USB serial development module in the FTDI product range. To minimize the size of the module, the UB232R uses a standard USB mini-B connector. It is ideal for new development purposes as well as a platform for adding a USB interface to existing product designs. The UB232R is based on the FTDI FT232RQ USB to Serial UART IC which handles all the USB signaling and protocols