Certainly looks like a nice option for external storage, but how would it connect directly to a camera? I see nothing in the documentation to suggest that’s possible.
It would connect via a USB port if your camera has one. I have a Nikon D300 and there is a USB port. However, the camera firmware would have to recognize the storage device and allow for transfer in the
absence of a computer if I'm reading the OP's thinking on this. I don't think that is possible at present and it would require the camera makers to correct this. Clearly this would be a very nice choice for making backups when on extended field trips without the need for carrying along a computer if the configuration was set up correctly. there would still be a problem of knowing what is on the drive in the absence of a computer to read it. Optimally, a file viewer on a smart phone or tablet would be ideal.