Any small device that plugs into an electronic device, typically a computer, and alters its functionality. Common examples include wireless modems, digital media players, software copy protect devices, and adapters.
A hardware device utilized by a specific application for purposes of copy protection.
A module or device that interacts with another to add a specific feature or function.
An electric vehicle that can be recharged from an external power source.
Anything that plugs into something.
Able to be extended with further components in a modular fashion.
Designed to be plugged into an electrical power outlet or circuit.