With 64GB pen drives around, carrying a quarter of a million books in your pocket is no longer a crazy dream.Pen drives have been shrinking in size and increasing in capacity in recent times, and for now at least, 64GB is the biggest you can get. 64GB may seem a little small considering that you can get a portable HDD of over 1TB nowadays. The advantage is this is a pen drive, it fits in your pocket, and doesn’t need an external power supply. It will also give much much better data density than an equivalent sized external HDD. The pen drive also comes with additional software which allow you to use it for backup. You can also use the pen drive to unlock your PC, and for storing internet passwords.This additional software can be downloaded from the Transcendusa.com and it is generally bundled with most of the Transcend. If you want the highest capacity you can possible get in the form factor of a pendrive, this is you best bet.