Size & Portability

The U3 system software automatically installs U3 components (the “U3 Launchpad”) on the hard drive of any computer it is plugged into.
The U3 USB flash drive can be plugged into any other computer running a compatible version of MS Windows without any software installation.
You only need Administrator’s rights on the setup computer, [...]

It is possible to password protect your U3 USB Smart Drive with a password so that nobody can use it if you should lose it or should it somehow fall into the hands of a data thief. You can also set it so that after a set number of password tries, it will destroy your [...]

U3 technology was developed jointly by SanDisk and M-Systems and is an open-standard. SanDisk later acquired M-Systems (2006).
The technology relies upon a tiny 4MB read-only partition which behaves much like a CD-ROM drive, while the data partition shows up as a regular flash drive – simple enough. Windows is tricked into treating the system partition [...]