Is there a way to check if a device supports USB device mode by looking at the specifications or via command line?

I also have a GL-AR750 Creta but I believe I saw a post on these forums saying the GL-AR750 Slate did not support USB device mode because GL.iNet needed to gage demand vs cost.

Besides the USB150 Microrouter is there any other GL.iNet devices that support USB device mode?