|The standard USB icon looks like
|Another common Microphone icon is
Common Headphone icons look like with on the computer port.
|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.