Best Quality ELM327 USB With Switch

As you know, the best USB solution is to use FTDI, and the original IC for ELM is PIC18F series.
That is why the combination PIC+FTDI is always the best. To add a switch makes ELM supporting more Car brands and more functions. Autodiag technology always provide you the best quality ELM serial products which in best solution and all with original chips.