Most people only use a single PCIe slot on the motherboard, namely the topmost x16 slot, to install their graphics card. The other PCIe slots are left vacant on most PCs since any additional ...

PC components have a finite number of channels that connect with the CPU. These channels are physically built into the CPU, the motherboard, and the components themselves -- and they're called PCIe ...

Be honest, when was the last time you installed anything in a PCIe slot that wasn't a graphics card? We still indulge in this charade, where ATX motherboards come equipped with several 1x and 4x slots ...