This is how I did it with my old board. My new board has a jumper to toggle between powering via USB and not.

Cisco Webex.

You think teams or zoom are annoying? This is much worse. The worst part is with some default meeting settings, a loud chime would play every time someone joined. People kept this on for meetings of 300+ people, then they started talking over the beeps once “the popcorn slowed down.”