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

Here is Why You Need An Adapter

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

Togo

In Togo, outlets of type C are in use.

Type C

South Africa

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

Type C

Type M

Type N