Whether DSLR or mirrorless, these days digital cameras all have some sort of USB port on them, and there are a lot of different things you can do with them.
The iPhone (or iPad) might be the camera you always have with you, but many people still carry a snapshot or higher-end standalone camera for other reasons: compactness, interchangeable or zoom lenses ...
While most people generally use a phone's USB-C port just for charging, it can do a lot more. Here are some unique devices ...