My motherboard is Asus P8Z77-V Deluxe. In future I am looking forward to install dual GPU's. But before that I want to install a SATA expansion card in the top-most PCI-E 2.0 4x slot. But I have a little doubt about this configuration. I donít know if putting SATA expansion card on PCI-E 2.0 4x slot will affect the PCI-E 3.0 x8, x8 in which I am going to add dual GPU's. I donít have much knowledge about this kind configuration but if anyone has experienced potential impacts of such a configuration, I would be grateful to hear from them.