Originally Posted by
gfunkdave
Does anyone know of a little dongle that I can plug into a USB-C port and it will show which PD profiles the port supports?
Not quite what you're asking, but I do use one of these cables -
Doesn't show what the charger supports, but it does at least show what's being used - although only in terms of watts and not volts/amps. Good for confirming that a charger/battery pack/etc can actually deliver what they claim.