This pen drive has a very simple design, like that of the cigarette lighter. It comes in blue colour. On one side is the circular ring hook which you can attach to anything. On the other side, a blue cover fits in the sensitive part which is inserted in the computer for USB connection. The interface of this pen drive is USB 2.0. It can be ordered in many sizes from8gb, 16gb, to 32gb also. You only need drivers for the old Windows OS and not for any other OS.