SanDisk Cruzer Micro 512 MB USB 2.0 Flash Drive (SDCZ4-512-A10, Retail Package) High speed USB 2.0 Stylish, clear overmold casing with bright green LED 2 Year warranty 512 MB memory capacity Compatible with Windows 98SE, ME, 2000, XP and Mac OS 9.1, OS X 10 and above