Almost all sound cards use standard color codes for input/output connector jacks.
In many cards, the microphone connector will be pink, the line out or headphone will be lime green, and the stereo line in will be light blue. Additional jacks may be present on newer soundcards for rear and mid surround speakers.
There is a wildly accepted color standard for computer sound card input and output jacks, but connector colors may vary between different brands. If you think you have a nonstandard card, consult your soundcard's manual or the manufacturer's web site before making any connections.
|Lime Green||Line-Out, Front Speakers, Headphones|
|Light Blue||Stereo Line In|
|Orange||Subwoofer and Center out|
|Black||Rear Surround Speakers for 5.1 and 7.1 systems|
|Gray||Middle Surround Speakers for 7.1 systems|
|Gold||Midi / Game port (Joystick)|
Note: The number of jack connectors you'll find on your soundcard will depend on how many audio channels it has: