Need assistance beside a fresh graphics card I get?

I lately got a nvidia graphics card beside a s_video and a av-out and I dont know what the av-out port is for it looks like a rca port any one know what this is for

Need assistance beside a fresh graphics card I get?

Could be component hook-ups for HD or Plasma set-ups. If you're not using it for any I wouldn't worry to much more or less it. They're likely simply alternate ways to set up your video. find homes for sale2