Usb 232-p9

On this link
http://aprs.facile.free.fr/APRS%20usb%20serial%20rs232%20converter%20problem.php

you will find everything to connect a USB serial RS232 adapter

for example, ELM327 wired DB9, carsoft, INPA, and also GPS in NMEA

USB adapter for serial device (DB9) under Windows XP, there are also Windows 7 64-bit and Windows 8.