Do all Jackson Pro Series guitars have a Floyd Rose?

A good number of models do but there are also some with a Hardtail bridge or a more traditional Tune-O-Matic style bridge. No matter what your bridge preference is, there will likely be something for you.

What pickups are used?

A variety of pickups are used throughout the range and are model specific. This is so each guitar has the best pickup match to its bodywood and style. They could be Seymour Duncan, DiMarzio or Jackson. Regardless of the selection, only the best quality of pickups have been used.

Are they limited to only metal?

While Jackson certainly caters to the musician at the heavier end of the music spectrum, they are still versatile guitars capable of sweet and smooth cleans. A lot of the designs and colours may look very metal but they can do a lot more than just that.