Is it possible to have a 2-in-1 USB device that is a Flash Drive and Power Bank?
Power banks typically are USB hosts so they can negotiate about voltage and current requirements with connected devices and e.g. cut power if required. In contrast to this, a USB flash drive (aka &quot;mass storage device&quot;) is a USB device, which does not provide a voltage on Vbus.
As far as I know, this contradiction makes it impossible to have both features combined in one device per standard.