Final answer:
The item in question is a cabinet designed for electronic or electrical component storage. It can be surface mounted or flush mounted and is finished with a frame, mat, or trim with doors for accessibility.
Step-by-step explanation:
The item described in your question is known as a cabinet. More specifically, this type of cabinet is intended for the storage and protection of electronic or electrical components and is designed for surface mounting or flush mounting. When surface mounted, it protrudes from the wall, and when flush mounted, it includes a frame that allows it to be inserted into a wall or panel, sitting flush against the surface.
The presence of a frame, mat, or trim indicates that it's designed to have an aesthetic finish, and the swinging door or doors attached to it allow for convenient access to the contents.