What's the difference with the Asus P6T Deluxe and the P6T Deluxe V2?
From the ASUS web site, the only difference is the removal of the SAS controller on Version 2. According to ASUS, there was a high demand by end users to remove it from the first version, so they did. Everything else on the two broads are the same. BTW - Depending on when you purchase the board(s), the BIOS will also be newer or different.