Anybody wishing to construct or upgrade a computer system must comprehend the basic function of PCI slots since they offer the required channels for hardware integration. Over time, the design of PCI slots has changed dramatically, giving rroyal vegas slotsise to several variations, including PCI Express (PCIe), which is now the norm in modern systems. PCIe uses a serial communication technique that enables higher bandwidth & lower latency than its predecessor, the original PCI, which used a parallel bus architecture. Because of this development, PCIe slots are now necessary for high-performance applications, allowing users to install network interface cards, sound cards, and graphics cards that need a lot of data throughput.