Six (6) pins arranged in approximately 270 degree pattern surrounding a small rectangular index dimple near the center of the plug.

The outer shell of the metal shroud at the front of the plug is approximately 3/8 inch diameter

The PS/2-style keyboard plug is interchangeable with a PS/2-style mouse plug.

Five (5) pins arranged in a 180 degree pattern.

The outer shell of the metal shroud at the front of the plug is approximately 1/2 inch diameter