The Linksys AE1200 is a USB wireless adapter that enables a computer to connect to Wi-Fi networks, supporting speeds of up to 300 Mbps on 2.4 GHz networks. It is commonly used to add Wi-Fi capability to desktops or laptops that don't have built-in wireless support, or to upgrade older wireless adapters to newer standards.
The Windows driver for the Linksys AE1200 is a software program that allows the operating system to recognize and communicate with the hardware, enabling it to connect to wireless networks. Without the proper driver, the operating system will not be able to use the AE1200 for Wi-Fi connectivity.