pluggable
/ˈplʌɡəbl/adjective
1Of a hole or aperture: able to be filled or stopped.
2Of a product or service, especially a pop song: that is suitable for being advertised and promoted in the media.
3Of an electrical appliance or device: able to be connected using a plug.
Origin
1920s; earliest use found in Geographical Journal. From plug + -able.