D-subminiature

"D-Sub" redirects here. For subdivision surfaces, see SubD.
"DC-37" redirects here. For the trade union in New York, see District Council 37.
"Micro-D" redirects here. For American information technology firm previously known as "Micro D", see Ingram Micro.

Normal density of DA, DB, DC, DD, and DE sized connectors

The D-subminiature or D-sub is a common type of electrical connector. They are named for their characteristic D-shaped metal shield. When they were introduced, D-subs were among the smallest connectors used on computer systems.