Litop 4GB Pack of 10 Black USB 2.0 Flash Drive Memory U Disk High Quality Metal PU Leather Metal USB memory disks are wrapped in PU leather, unique design Plug and play installation, no need any extra power supply Supports windows 7 /8,Vista/XP/2000/ME/98/910, Mac OS 8.6 above and Linux etc computer operating systems Store and save all your photographs, videos, movies and music via any USB 2.0 port High speed in writing /reading transfer,100% of quality assurance