This USB2 key is designed to be attached to a keychain, to have it at hand without losing it. Small and robust, fully dressed metal in a minimalist style, it is resistant to shocks. A leather strap accompanies it, if necessary. Dimensions 37.3 x 12.2 x 4.5 mm; weight 5.3 g! Fast and without problems recognized by the computer, Mac / XP / Vista / Windows 7 or 8. 8GB capacity (the equivalent of 2,000 music tracks). I've never been disappointed by the TRANSCEND data storage products, whether memory cards or USB sticks, all of longevity. Be careful to choose the right vendor, because the price will almost triple the simple ...!