1.Jewelry usb flash drive for promotion 2.Huge Storage Capacity 3.USB 2.0 Hot Plug &Play Compatible 4.No external power Specifications Jewelry usb flash drive for promotion at factory price Capacities available128MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16GB, 32GBUSB chipsHigh quality real chipsOperation systemWindows 7/Vista/XP/2000/ME/98 and Mac OS 8.6 or aboveReading speed28MB/SWrite Speed9MB/SColorsAny ...