You Do Need power plug adapter while traveling from Cape Verde to United States of America (US) USA.

Here is Why You Need An Adapter

The outlet and plug type used in United States of America (US) USA are A and B and in Cape Verde are C and F. This is how they look like.

In Cape Verde, outlets of type C and F are in use.

Type C

Type F

In United States of America (US) USA, outlets of type A and B are in use.

Type A

Type B

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