D-sub

noun

an electrical connector with two or more rows of pins or sockets surrounded by a D-shaped metal shield

Similar
D-subminiature
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Meanings

nounD-sub (plural D-subs)

plural D-subs

  1. businessan electrical connector with two or more rows of pins or sockets surrounded by a D-shaped metal shield

    Some serial ports use a 25-contact D-sub, but with few exceptions, a 25-pin serial D-sub on a PC is male, with the female connector on the cable—the reverse of the parallel-port convention. (Other serial ports use 9-pin D-subs instead.)

    1996, Jan Axelson, Parallel Port Complete: Programming, Interfacing & Using the PC’s Parallel Printer Port

    Synonyms: D-subminiature

Synonyms & antonyms

nounan electrical connector with two or more rows of pins or sockets surrounded by a D-shaped metal shield

Similar
D-subminiature

Origin

Clipping of D-subminiature, from the Cannon part numbering system where such connectors’ designations are prefixed with D.

Full word history & related roots →
Cite this entry
APA

D-sub. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/D-sub

MLA

“D-sub.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/D-sub. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “D-sub,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/D-sub.

Source: D-sub on Wiktionary, CC BY-SA 4.0.