I purchased this card reader there a year, and he never caused any problems. Compact, efficient ... until today. When I plug it into my computer, the drive indicator lights up well, but nothing happens, my computer recognizes it not at all. I checked out several USB ports to see if it did not come to that, but no. I have even checked with other computers, but the same results can not read my memory card. Damage to buy a product with a shelf life of one year.