What Does Blank-Off Plate Mean?
A blank-off plate is a small, metal plate usually found on the back of computer cases. It provides a cover for the openings for expansion slots used for devices such as external cards, video cards, sound cards and network drivers. Although the most frequent application of blank-off plates are in computer systems, they can be also used in other capacities. In fact, blank-off plates can be useful for any machine that accommodates external components.
Techopedia Explains Blank-Off Plate
Blank-off plates close off spaces that would otherwise be open, and prevent contaminants from getting into a machine and potentially damaging internal components.
