ECS X79R-AX @ Hardware Secrets
“ECS has released two motherboard models for the new socket 2011 platform, the X79R-AX and the X79R-AX Deluxe, targeted to the most high-end processor Intel offers for desktops today, the Core i7 “Sandy Bridge-E” models. Let’s take a look at the X79R-AX, which comes with four PCI Express 3.0 x16 slots, eight SATA-600 ports, six USB 3.0 ports, and more.”