ASUS Rampage III Extreme also known as one of the highest performing and most overclocking-friendly enthusiasts planforms. However it did not support 4-way SLI multi-GPU configurations. Fortunetly there is a solution for this. ASUS has come up with ROG Xpander which Enables 4-Way SLI on Rampage III Extreme.
The power supply will need to have a spare 6-pin PCI-E power input and up to three 4-pin Molex inputs. The drawback is this cannot be fitted to traditional cases since this is a new one.
