... available )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, different shaped ... , down compatible to USB 1.0 and 1.1Data retention: Over 10 yearsPlug & Play:No driver needed for Windows ME, Windows 2000 / XP, Vista ...