pci slotLearn about the different sizes and uses of PCI Express slots, from x1 to x16, and how they affect the bandwidth and performance of your expansion cards. Find out the typical examples of devices that use each slot typeLearn the differences between PCI and PCIe, two types of buses in PC, from function, appearance, speed, and compatibility aspects. See how to distinguish them and how to mrate to PCIe SSD for better performance.