https://www.dell.com/support/contents/en-us/videos/videoplayer/how-to-replace-the-wireless-module-on-optiplex-3090mt/6387997324112
How to Replace the Wireless Module on OptiPlex 3090MT | Dell US
This video will demonstrate the replacement procedure of a wireless module for the OptiPlex 3090MT.
how to replacewireless module