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 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.