... ,1GB,2GB,4GB, 8GB, 16GB, 32GB,64GB Customized High Quality Chinese Style Promotional Novelty Ceramic 8GB Gift USB Shape OptionsBracelet/wristband, pen ... )Operating current40mA-55mAOperating voltage1.8V-3.6VQuality Guaranteed2 Years Compatibility Table Operating SystemFile TransferPassword TravelerWindows® 7YesNoWindows Vista® ** (SP1)YesYesWindows ReadyBoostYesNoWindows XP ...