High Quality Promotion Ceramic 8GB Gift USB ceramic material.good USB chip 2.0,256MB-128GB,accept OEM SGS,CE, ... 1GB,2GB,4GB, 8GB, 16GB, 32GB,64GB Customized High Quality Chinese Style Promotional Novelty Ceramic 8GB Gift USB Shape OptionsBracelet/wristband, ... .1: 1Mbps 2.0: 8MbpsWrite Speed1.1: 920Kbps 2.0: 5.5MbpsData Retention10 Years MinimumPowerNo extermal power requiredOperating Temperature10°C ...