What's more ... although it would be ugly and awkward, one can easily imagine that 50 micro sd cards could easily be mounted on a single USB like device that si

What's more ... although it would be ugly and awkward, one can easily imagine that 50 micro sd cards could easily be mounted on a single USB like device that sits in your pocket and attaches to a phone. The reason it doesn't exist is primarily nobody needs it rather than "it can't be done".