Large or full-sized DIN connectors use between three and eight pins in seven different patterns. Two five-pin connectors are available. Some three-pin connectors fit five-pin sockets; however, not all ...

The 5-pin DIN keyboard connector used with the first IBM PC (1981) and second-generation IBM AT (1984). It was subsequently replaced with the smaller 6-pin Mini-DIN connector on the IBM PS/2 in 1987.