Hi, these are the slots you should be interested in:

3x PCI-Express 2.0 x16, ignore the x8 and the othe PCI slots.

It basically means you can have up to 3 graphics cards connected to your Motherboard. Your new graphics card will be compatible with any motherboard as long as these PCI-Express 2.0 x16 slots are present.

Keep in mind you will also need a high quality power supply for your computer (750W or more), since these high-end cards require:
1. To be connected to motherboard
2. Have 2 "PCI-E Cables" connected from the Power Supply to your card.

Good luck!