Usb flash drive Usb 2.0 /1.1interface, need no power supply Support full-speed (1.2mb/s) Usb standard commands & vender commands support Driver support for windows 98/98se No driver needed for windows 200/me/xp and mac os 9.0 or higher Provide led indicator when usb flash disk is working Write/delete protection switch. Protect your data in usb flash disk Can be eased and written for 1 million times Support usb-hdd & usb-zip boot Storage life:>10 years Build in security function Hot plug and play-enable you to install usb flash disk at anytime Memory size:64mb/128mb/256mb/512mb Metal gift bos Qty: 100pcs Gw: 9kg Dimensions: 61*27*14cm