2303 - shows that he is sitting at Profilic.
It depends on version 2303 which was sitting there.
Sam I have ELM327 on Profilic2303 I just do not remember with which terminal and works on max Windows 7. About Windows 8, 8.1, and 10 I can forget.
There are programs to check what version is layout. e.g. here:
CheckChipVersion edit:
I found.
"Windows 8 / 8.1 / 10 are NOT supported in EN-2303HXA and PL-2303XEOL chip versions.
Run PL2303 CheckChipVersion tool program in Windows XP / Vista / 7 is check chip version.
Windows Vista, XP, 2000, 98 and Windows ME driver technical support are discontinued.
Prolific recommends to use PL-2303HXD (HX Rev D) or PL2303TA chip. "