I have a D-Link DWA-556 card, says it fits into any PCIe slot. My question...is there any advantage to plugging it in a PCIe x16 slot? Faster speed? Better connection? I have the following: Asus P6X58D-E PCIe x1 - open PCIe x16 - open PCI - open PCIe x16 - video card PCI -sound (Soundblaster card, not working right...have sound, no EQ, etc) PCIe x16 - USB 3.0 card. Does it matter where I stick the wifi card? It'll fit nicely into the top slot. I haven't been shopping for sound cards yet...any help there? I'm on Win7 (64bit), have a great set of Logitech speakers and want some incredible sound. Thanks.