Disclosed are a dongle apparatus and a method of controlling the same. The dongle apparatus includes a fastener that combines or separates the dongle apparatus with or from a home appliance, a power supply that receives at least one of a plurality of ranges of power from the home appliance, a power converter that converts the power into available power, a locker that locks the fastener so that the fastener does not separate from the home appliance or unlocks the fastener to separate therefrom, and a controller that receives the available power and controls the locker to lock or unlock the fastener.