Crystal Jewelry USB Flash Memory Drive U Disk Pendant for Necklace (32GB) Available Capacity: 1GB, 2GB, 4GB, 8GB,16GB, 32GB Operating Systems: Windows ista / XP / 2000 / ME / 98 / 95 and Mac OS 8.6 and above USB 2.0 interface and plug and play Crystal jewelry small size, protable to everywhere Hi-speed Datatraveler Flash Drive