CR-FP2 : Elecom USB keys with fingerprint reader

A USB key with a fingerprint reader is not new, but these small CR-FP2 and CR-FP3 USB keys received a sensor with a 1/10000000 precision. They nearly perfectly recognize your fingerprint. Also, Elecom announced the keys don’t retain the fingerprint in memory, which prevents people from accessing your data.
The CR-FP2 has 256MB of memory and weights 19g. The CR-FP3 has 512MB of memory and weights 11g.