This is a well made US plug to Brazil (N) style electrical plug. There really isn't much to say other than the adapter converts plug types so US equipment may be used in Brazil. However there are two items to keep in mind.1) You still have to watch the voltage. A lot of US equipment is designed for 110/120 voltage only and Brazil uses 127 to 240 voltage. Thus check any equipment to make sure a voltage converter is NOT needed. If one is required then you need to buy that separately.2) This will not protect against electrical surges. So use this plug in Brazil style surge protectors or connect a US style protector into this plug for sensitive equipment. Do keep mind the above statement. If you connect a US style surge protector make sure it can handle up to 240 volts.