High Quality Promotion Ceramic 16GB Gift USB ceramic material.good USB chip 2.0,256MB- ... .256MB,512MB,1GB,2GB,4GB, 8GB, 16GB, 32GB,64GB Customized High Quality Chinese Style Promotional Novelty Ceramic 16GB Gift USB Shape OptionsBracelet/wristband, pen ... Certificate CE,ROHS,FCCMemory Capacity256MB,512MB,1GB,2GB,4GB,8GB,16GB,32GB,64GB,128GBOperating Systemcompatible with the operation systems of Windows ...