I want to buy a third monitor for my Desktop, mainly to be used for Spotify and Web-Browsing. As my graphics-card (Radeon 5570) only supports two monitors, I need to purchase an External Graphics Card. I have my current two monitors hooked up via VGA and DVI and I am not sure whether to buy an external VGA or if an external DVI graphics card would be better. Does anyone know if it matters if I have two VGA's and one DVI, or the other way round, or will it only work with one of them (VGA or DVI)?
Help is really appreciated!!!
post script: this is the external g-card I was going to purchase: I-TEC USB 2.0 VGA Display Video Adapter FullHD: Amazon.de: Computer & Zubehör