You Do Need power plug adapter while traveling from Azores to Argentina.

Here is Why You Need An Adapter

The outlet and plug type used in Argentina are C and I and in Azores are B, C and F. This is how they look like.

In Azores, outlets of type B, C and F are in use.

Type B

Type C

Type F

In Argentina, outlets of type C and I are in use.

Type C

Type I

I am from

going to