ASUS ROG Crosshair IV Extreme
 

The ASUS Crosshair has a long legacy of being one of the best high-end motherboards for AMD systems. One of the trademarks of the Crosshair series is support for multi-GPU. While the first and second generations Crosshair motherboards support Nvidia SLI, the third generation only supports AMD CrossFire due to chipset limitation. Since there is currently no Nvidia chipset that will work with latest AMD processor, ASUS relied on a third party solution, Lucid's Hydra chip, in order to bring SLI to the AMD platform.

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