Actually there are at least 3 versions of it, but up until recently only the deluxe has been available in north america. There are also standard and E-deluxe models. The standard supposedly has the ICHR southbridge. The E-deluxe has the ICHR southbridge, as well as CSA and Intel gigabit lan, and possibly and updated northbridge heatsink. It's hard to get the details on the other two versions, but I saw that Newegg is listing the E version coming in in the next couple of weeks.