USB Flashdisk - Transparent Color

It is one of the unique device that has been created. The stored data will shown different colors from this USB. No lights means no data, lights filling the glass means there’s no more space. And when it copied data from your computer, it will recognize the data, pink is for images, blue is for documents and green for movies, etc. It would be more fun if the lights can move in the glass when you shake it.

source : itechfuture