... is a port-powered USB to dual RS-232 converter that can be used to convert any standard USB port (USB 2.0 – backward compatible ... Linux.FEATURES• Industrial grade design, adds two RS-232 ports to USB port, compatible with MDT,PND.• FTDI 232BL single chip solution ... -bit), Win CE, Mac, and Linux. Industrial Grade, FTDI solution,USB to Dual RS232 converter / adapter /serial cable, applicable to PND