How does multi-view work?

[Thunder888]

I'm looking for a GFX card able to run two screens at the same time. I've seen cards advertising a "multi-view" capability and that they have a (to me ) strange looking plug on the back. Is this a DVI plug?

If someone with a big heart could perhaps just give me a quick idiot's how to guide on this, I would really appreciate it

Thanks guys.