Litop 32GB Silver Metal Key USB Flash Drive USB 2.0 Memory Disk With a Protective Case, a Neck Strap and a Wrist Strap as a Gift Fashionable style; made of stainless steel; Small and pocket-sized for easy transportability Easy to use, just plug in and playing directly, no need any extra power supply, USB Bus-Powered Operating system supported: windows 7 /8, Vista/XP/2000/ME/98/910, Mac OS 8.6 above and Linux, etc. High speed in writing /reading transferDurable data storage