desktop PCs rarely have a decent WiFi integration. Even if your motherboard has WiFi built in, chances are it’s not the best. This is why WiFi cards are so popular. These cards plug into an empty PCIe ...

A PCIe expansion card uses your extra PCIe sockets to add new capabilities to your PC, like faster Ethernet, more USB sockets, or Wi-Fi and Bluetooth ... others don't have the desktop space ...