ASUS has developed a new connector named ASUS Wi-Fi slot. They say that it's just a modified PCI interface with improved power supply. I don't think that the wireless adapter requires more power than the PCI bus supplies. What I can see is that the company tries to tie users to its products, because a card with such an exotic connector wouldn't fit in boards of other companies. On the other hand, such adapter (it comes with the mainboard) lifts the board's cost just by $15-20 (at the moment of the review publication), and the recommended retail price of such adapter is $25. In other words, we get the wireless card for a trifling sum.
Digit-Life