I think that would drain the battery, but feel free to try
What I did was to mount everything inside a neat little box and glue it to the back of one of my spare 770 hard cases. The combination makes it very easy to use USB flash drives on the move. Here are some pics (yes, I'm proud of my achievement )...

PS: Yes, I know that my screen protector is _terribly_ dirty, but I spilt some milk over it this morning during breakfast