It's probably the total power allocated to the two USB ports. We already know that some of the USB drives that PG Music uses require maximum power from a USB port.

You can see the power allocation if you go to Device Manager.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.