Plug

A plug is a part with some type of projection that goes into a port.

Lots of kinds
There are lots of kinds of "plugs" out there in this world, humans use each differently depends on each situation.
 * Mini-DIN Connectors
 * USB Connectors (A, B, Mini-B)
 * Firewire Connectors
 * DB Connectors (D-Sub, DB-25)
 * RJ Connectors (RJ45)
 * Audio Connectors
 * VGA Connectors
 * DVI Connectors
 * HDMI
 * S/ PDIF connection

Section heading
Write the second section of your page here.