This is an amazing little device. You won't believe the incredibly sharp, vivid picture you will get with games like Soul Calibur, PSO, Sonic Adventure 1 and 2, Shenmue, Ecco the Dolphin, Dead or Alive 2 (on and on). Dreamcast 480p really rules!
In response to the previous reviewer, there's a small input (hole) on the center section that you need only plug your computer speakers into for the 64-channel, stereo sound through the PC speakers (of course, your computer has to be on).
My only complaint about this item is the ludicrously short cable. It forces you to have your Dreamcast unit almost directly next to your monitor.