... that can be used to convert any standard USB port (USB 2.0 – backward compatible) into two RS ... grade design, adds two RS-232 ports to USB port, compatible with MDT,PND.• FTDI 232BL single ... , CTS, DTR, DSR, DCD, RI, and GND.• Data transfer rates from 300 Bps to 921,600 bps• Internal 128 ... CE, Mac, and Linux. Industrial Grade, FTDI solution,USB to Dual RS232 converter / adapter /serial cable, applicable ...