A PCIe Wi-Fi card installs into an expansion slot inside a desktop PC case, providing internal Wi-Fi connectivity. PCIe Wi-Fi cards generally offer better performance than USB adapters: stronger signal (using antenna cables routed to external antennas), more stable connection (direct PCIe bus rather than USB), and often include Bluetooth. For Egyptian PC gamers and power users who want maximum wireless performance, a PCIe Wi-Fi 6 card is the best upgrade. For occasional wireless use, a USB adapter is more convenient and doesn't require opening the computer.