... Industrial grade design, adds two RS-232 ports to USB port, compatible with MDT,PND.• FTDI ... and GND.• Data transfer rates from 300 Bps to 921,600 bps• Internal 128/385 Byte Tx ... self-adjusting).• Remote Wakeup Capable• 1.5 Metre Cable• Surge protection, ± 15KV ESD protection• Supports Windows ... Linux. Industrial Grade, FTDI solution,USB to Dual RS232 converter / adapter /serial cable, applicable to PND