I did my homework and this seemed like it would be a great product. However, I was never able to get it to work. The directions were very poor, but mainly it frequently would NOT turn on, no matter how long/short I pushed the button. Also, I bought the chip and followed the directions but could never get my computer to recognize it. I spoke w/ Overstock who set me up w/a conference call w/ the manufacturer, who also did not seem to know a whole lot. The apparatus comes w/a disc that would install only partially, then freeze up my computer, necessitating me to turn off the computer, and then it would not reinstall. They sent me a new disc which did the same thing. The manufacturer agent finally said that the disc wasn't necessary and perhaps was only advertising for me to buy other products...who knows. However, Overstock was great, both Chelsea and Ann W. made the return easy, and i will gladly by from them again...just not this product. I've done without a scanner this long, so maybe I don't really need one after all.