DB9 connector

DB9 connector DB9 connector, a common type of electrical connector. The term "DB9" refers to a common connector type, one of the D-Subminiature or D-Sub types of connectors. DB9 has the smallest "footprint" of the D-Subminiature connectors, and houses 9 pins (for the male connector) or 9 holes (for the female connector). The DE-9 D-sub [...]