Quick question, and I might've posted in the wrong area, but on a Sound Blaster Vibra 16xv PnP ISA sound card, there is a pinout labeled MB_PRO.

Out of curiosity, what is that for? Adding front end audio jacks on the front end of a computer in case the audio cables are too short for the back?

Found a pin-out diagram on Creative Labs web site: http://support.creative.com/kb/ShowArticle.aspx?sid=3026
Would be great to have front-end audio on the sound card since my audio cables are somewhat too short.