PCI slots are essential for improving system performance and capabilities in modern computing environments. They provide the structural support for connecting different expansion cards, which can greatly enhance a computer's performance. In graphic design or gaming applications, for example, a dedicated graphics the web app contents are swapped when swapping deployment slots.card placed in a PCIe x16 slot can significantly improve visual performance. Similar to how network interface cards (NICs) can expand connectivity options beyond what the motherboard offers, sound cards can be added to enhance audio quality for multimedia applications. Also, PCI slots serve a purpose beyond simple connectivity; they make it easier to incorporate cutting-edge technologies into already-existing systems. PCIe slots have evolved to support new standards, like NVMe for SSDs, thus enabling users to benefit from enhanced performance and faster data transfer rates without having to replace their entire system.

the web app contents are swapped when swapping deployment slots.