... top barrel 3 in 1 Crystal touch stylus pen with USB driver (2GB,4GB.8GB,16GB,32GB) Material metal Size14.7x148.5MM ... Capacity2-16GBColorBlack,silver or customized color Usestylus pen,ballpen,USB drive, gift,promotion&advertising Operating Temperature 00 C to 600 ... Temperatures-200 C to 900 CTransfer RateHi-Speed USB 2.0 Certified, Compatible USB 1.1Operation SystemWindows 7/ Vista /XP /2000 /ME ...