Dimensions USB stick closed: 2.5 cm long, 1.5 cm wide and 8 mm thick. This mini size, it is very handy and fits in the smallest pocket. For people who are familiar with rather less USB Sticks: A USB stick requires some capacity to own at the terminal to work, in which he is placed. Therefore go of the listed capacity of 64 GB 5.5 GB go lost, so that is an actual storage capacity of 58.5 GB. I highly recommend this drive. He is working properly