There are two types of audio device plugs used for PC and Macintosh computers.
A mini-plug has one or two small round segmented pins that are plugged into the audio ports of the computer.
A USB (Universal Serial Bus), consists of a single rectangular plug as shown in the table below.

Both types of devices are usually plugged into the ports found on either the front or the back of the computer.

The table below shows examples of the connectors and ports, as well as some of the icons used to identify them.

	USB	Mini-plug
Device Plug/Connector
Computer Port(s)
Icons	The standard USB icon looks like	Another common Microphone icon is Common Headphone icons look like with on the computer port.
Comments	USB ports may or may not have the '2.0' designation next to the USB icon as shown above.	Typically the microphone input is pink or red while the headphone input is green. Mini-plug connectors and ports also have icons on or near them for identification as well as the pink and green color coding.

DO NOT plug either type of audio device plugs into the blue port or the one marked