Pros: Lightweight, been using it over a year with my Macbook Pro and I haven't hit a monitor/display/projector that doesn't like it. Also used it on a handful of other laptops that use Display Port technology and they all seemed to work just fine.

Cons: None so far, 1-year and counting, don't think I will find a con, considering it could die today and I still got my moneys worth.

Overall Review: If you're looking for a cheap dongle to connect a laptop with Display Port to a projector or monitor this is the thing you need! Haven't had an issue with it being "passive" at all. Even Apple's own adapters have a passive model. I haven't tried this in desktop video cards that have mini DisplayPort, but I hear it works just fine.