Hey team, I'm trying to add a second monitor to a dell optiplex that is a slim case. I tried installing an extra video card I had but it wouldn't fit in the slim case. So the question is (and forgive me i'm not up on my hardware) Is there another way besides adding a video card to add another monitor? This monitor doesn't need great graphics, all that will be on it is a window with some working orders. If no, are there 'compact' video cards that may work? Thanks in advance.