Mini-DIN connector

Mini-DIN 9.5 millimetres (3⁄8 in) is similar to the larger, older 13.2 mm diameter DIN connector.

Mini-DIN connectors are 9.5 millimetres (3⁄8 in) in diameter and come in seven patterns, with the number of pins from three to nine.

They are each drastically different from the other, with no simultaneously and directly overlapping similarities in (1) pin arrangement, (2) square key size and position, (3) circular shielding metal skirt notches and metallic additions: in this they differ from the nonstandard mini-DIN connectors which may have directly overlapping characteristics to each other or to the standard mini-DIN connectors.

Some notable examples of standard mini-DIN connectors include: Several non-standard sockets are designed to mate with standard mini-DIN plugs.

These mini-DIN style plugs are not approved by the Deutsches Institut für Normung, the German standards body, and many applications could be considered proprietary.

PS/2 female socket pin numbering: note that it is a mirror of the male connector.
Color-coded PS/2 connection ports (purple for keyboards and green for mice) on the rear of a personal computer
An S-video connector: because this is a female connector, Pin 1 is at lower right
A non-standard, 7-pin socket (female) variant compatible with an S-Video Mini-DIN-4 plug (male)