There are several outputs for flexibility, but that chipset only has timing circuits to drive two independent displays, including LCD.
Get a ~$30 USB to DVI/VGA/HDMI adapter based on the DisplayLink DL-165 or DL-195 chipset, like those provided by Wavlink or Winstar, to drive the other one. Use it for the one which you don't plan to use video/games on (or the one with lower resolution), as rapid action will soak up both USB 2.0's limited bandwidth - which I'm guessing you have with that chipset - and your CPU.
If you actually have USB 3.0 (blue ports), you can get a newer one based on the DL-3xxx or higher; otherwise it's not worth it and the older ones are cheaper. You should normally prefer using the DVI or HDMI connections over VGA.