Motherboards.org posted a review on the EPoX Optimus EP-AD580 XR Motherboard

The AD580 XR motherboard has all of the features you would expect from a Crossfire compatible motherboard and if you're in the market for an ATI graphics card would make an excellent choice. The board has 6 SATA ports, and many expansion slots, making it an excellent choice for the tweaker that wants to expand.

EPoX Optimus EP-AD580 XR Motherboard Review