Thank you very much for your reply!

As stated above, I would like a easy upgradable PC over time. So if the X48 Chipset works with Mac OS X, I stay with this board.

Note: I also compared the components from this motherboard (lan and sound) with another compatible motherboard (GA-EX58-UD5) and the result was pretty much the same at audio and lan (results here: http://www.gigabyte.com.tw/Products/...ctID=2765,2958). And if Intel X58 Express Chipset worked, X48 will sure do it's job as well.