Ever wondered just what kind of files do you store on your USB flash drive, as well as their percentage? For those who love to keep track of seemingly trivial information, this conceptual USB flash drive might just come in handy. After all, it comes with a display that will show the kind of files available via color, where pink stands for images, blue for documents, green for movie files and so forth. Depending on the number of files, the color displayed will be in proportion. Just like those USB flash drives which show how much space there is left even without being plugged in, we guess this concept runs on a similar idea albeit on a notch above.