An adapter is an electronic device that allows one type of plug, connector, or electrical system to connect with another. It is commonly used to convert electrical power from a wall outlet into a suitable voltage and current for electronic devices such as mobile phones, laptops, and other gadgets. Adapters ensure that devices receive the correct amount of power, which helps protect them from damage. They come in different shapes and sizes depending on their purpose, such as power adapters, plug adapters, and USB adapters. Many modern adapters also include safety features like surge protection, temperature control, and automatic voltage regulation to make them safe and reliable for everyday use.