If you use Linux (Ubuntu, Mint, Fedora) , this is the easiest path. The kernel includes open-source drivers for Ralink RT2870 (rt2800usb). In most modern distributions, the adapter will work immediately upon plugging it in, with no driver hunt required.
If you have lost the original CD, reputable open-source driver archives like Linux firmware repositories are safe. You can search for wn8522b or sharp wifi driver on GitHub or the Debian firmware packages. These are not .exe files but .bin files used for Linux installation. sharp wireless lan adapter wn8522b driver
The Sharp WN8522B is a high-performance wireless LAN interface module designed specifically to integrate Sharp’s line of Multi-Function Printers (MFPs) and Interactive Displays into modern wireless network environments. It eliminates the need for cumbersome Ethernet cabling, offering businesses flexibility in device placement and secure, high-speed data transmission. If you use Linux (Ubuntu, Mint, Fedora) ,