D-sub identification guide — nine and twenty-five positions

Scope and location

Two-row position counts and multiple documented DB25 applications.

Introductory population warning; DB9; DB25

Open the original source

Inspected

2026-10-03

Access

public page

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Some contacts may be unpopulated. DB9 is the source trade label; no universal serial pinout or protocol is inferred.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.