Its an STM32 board not a GD32 board, so I should move this thread to the correct section.
It will probably work.
I think someone else may have posted about this board already, as I recognize the board, but not by that vendor.
The only issue is normally whether they have actually connected the USB data lines to the connector or if its just for power.
And if they have connected the USB data, whether they have a pullup on the data to allow the host to determine it is connected and what speed it runs at.
Price is OK if you want that form factor but you can get the same functionality in the "BluePill" for $1.52 !https://www.aliexpress.com/item/mini-St ... 445137.htm