That's 2 releases (Maximus VI Formula) that basically take over their respective market niches, making the competition irrelevant .... the 3rd (Maxiumus VI Extreme) to my mind was a miss. Now if they would only drop the Poseidon, I can expect my dining room table to be cluttered with parts for weeks.
So what is the difference this and the z87i deluxe?
the z87i pro lacks wifi AC,but its the same as the deluxe. Between the impact and deluxe, the deluxe has more sata and more usb 3.
There is a much higher-end audio implementation on the ROG Impact when compared to the Z87-I Deluxe. The ROG Impact also includes the M.2 socket and mPCIe connector for an internal M.2 SSD and a swappable WiFi/Bluetooth card as compared to the Deluxe's built-in WiFi/BT solution and lack of mSATA/M.2 socket.