... used to convert any standard USB port (USB 2.0 – backward compatible) into two RS-232C ... port, compatible with MDT,PND.• FTDI 232BL single chip solution• RS-232 data & signals: TX, RX, RTS, ... Hardware Handshake• Transmit /Receive LED indicators• USB1.1/2.0 Full Spead Compliant• USB-No IO, IRQ ... Win CE, Mac, and Linux. Industrial Grade, FTDI solution,USB to Dual RS232 converter / adapter /serial cable, ...