... CE FCC ROHS approvalType usb: Metal usb, PVC usb , Wooden usb, Plastic usb, ,Card usb, Pen usb, Jewelry usb, Customized usb , Ceramic usb, each usb with different kinds, ... : Interface: High-Speed USB 2.0, down compatible to USB 1.0 and 1.1Data retention: Over 10 yearsPlug & Play ... :No driver needed for Windows ME, Windows 2000 / XP, Vista, Linux ...