... SpecificationAvalable capacityCommon size: 32MB-16GBBig size: 32GB, 64GB, 128GBShapewristband, pen, cartoon, food, fruits, heart, soccer, lighter, neckline, namecard, credit card, beer ... -and-playOperating systemFree for all system except Win98 (need a driver for Win98)Read speed8-15MB/sec (depending on computer configuration ... , FCC, RoHS Warranty3 years oem factory high speed pen usb driver