You Do Need power plug adapter while traveling from South Africa to San Marino.

Here is Why You Need An Adapter

The outlet and plug type used in San Marino are C, F and L and in South Africa are C, M and N. This is how they look like.

South Africa

In South Africa, outlets of type C, M and N are in use.

Type C

Type M

Type N

San Marino

In San Marino, outlets of type C, F and L are in use.

Type C

Type F

Type L