I'm looking at the MSI 970 motherboard. Now I think I would need a wifi card which as I understand it would take up one of the PCI-E slots, and the GPU is a ASUS Strix GTX 970. The description for this card confused me slightly as it says the fansink is "extended to two slots". Does this mean it takes up two PCI-E slots or is it just longer? Either way could someone advise if it would be compagtible with the MSI 970 and a wifi card? Thanks!