... ,MDT support The USB to Dual RS232 converter/adapter is a port-powered USB to dual RS-232 converter ... that can be used to convert any standard USB port (USB 2. ... grade design, adds two RS-232 ports to USB port, compatible with MDT,PND.• FTDI 232BL ... Mac, and Linux. Industrial Grade, FTDI solution,USB to Dual RS232 converter / adapter /serial cable, applicable to PND ...