Blank-Off Plate

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.


Blank-off plates are also known as face plates or filler plates.

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.

Some of the industries where blank-off plates are most frequently used are computer hardware, engineering, construction and manufacturing. In addition to use over openings for expansion ports, blank-off plates commonly provide covers for openings unoccupied by devices such as disk drives, USB ports or hard drives on computer systems; blank-off plates such as these are usually made of acrylic.

Blank-off plates are made in different configurations and dimensions depending on the device or machine on which they are to be used. There can be different procedures for removing blank-off plates from different systems. In certain systems, they are removed by removing a screw, while others may require pushing a button or simply punching the blank-off plate out of position.


Related Terms

Latest Hardware Terms

Related Reading

Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…