Biometric USB Device – Possible solutions

Hi,

I am calling on the collective knowledge of our community if possible.

I am trying to find a biometric USB flash key that does not require to install (no footprint) and the software is ran from the device (not 2 drive letters etc).

The new products seem to do all their processing on board negating the need to install on the host machine, though expensive these seem the best and most secure option

I know of a couple of products such as a stealth mxp but was hoping someone might have researched this before and hit upon other products

Any help would be great

Thanks