It is the second SanDisk Cruzer flash drive with this sliding mechanics with increasing use (2-3 months) can be used nurmehr per millimeter work (stick far enough but not quite push all the way into the device). Partially in imprecise handling the stick is not at all recognized or the device loses the connection to the storage medium. A great pity, because the speed is unbeatable but concerning (sliding) mechanics I can of this product repeatedly advise (if a reliable usability is desired).