StarTech 1 Port USB to Null Modem Adapter Cable 1.7M Add a Null Modem RS232 serial port to your laptop or desktop computer through USB Add a Null Modem RS232 serial port to your laptop or desktop computer through USB USB to Serial - USB to RS232 - USB to DB9 - USB to serial Adapter - USB to serial port - Integrated FTDI USB UART Chip - DCE / DTE - 1 Port USB to RS2232 DB9 - USB Powered
