In Brazil the power plug type C and N are used which means that they are compatible with most plugs from Europe. If you are coming from other countries with different plug types you will need an adaptor or an electrician that can change the plugs for you.
Security Warning Due to frequent power outages, especially during the rainy season, it is advised that you connect your electrical equipment to power surge protectors. These are readily available in hardware and electrical stores here in Brasilia.