PciE slot saying empty

like a WiFi Card, Sound Card etc with the x4 slot what are pcie x4 slots used for, what are

In addition, a x16 PCIe slot can supply 75 watts of power to the video card, as opposed to the 25watt42 watt AGP 8x connection But PCIe has

what does pcie slot look like PCI Express is a serial connection that operates more like a network than a bus Take a look at these PCI Express pictures to learn more

what are progressive slot machines It was originally designed as a successor to PCI-type connections for video cards Since 2004, AGP was progressively phased out in favor of PCI Express ,