How to guarantee that the material in your computer will not be seen stealthily by other people?A kind of new-type USB impression of the hand locks and can help you, this kind of product called that the readers of impression of the hand of different various kinds of PCs may be used, after installing and finishing, the intermittence one your PC in the past each time, in the course at moment luckily of time of state waiting for the work to enter, need this USB impression of the hand and is it is it stand up to link to lock, can is it confirm impression of the hand of user to chase.This safe little interesting house keeper, perhaps the price is in about 40 dollars, sell in the area of North America only at present.