1.Portable and slim 2.UV material 3.slot in loading 4.usb dvd drive 5.with a pop-up key USB2.0 slot-in dvdrw with a pop-up key Optical Drives External DVD Burner for laptop Features:1.Slot in USB DVD DRIVE , with a pop-up key, support CD pop-up2.Standard USB2.0 transfer rate, downward compatibility,maximum data transfer rate up to 480Mbps3.Support Window2K/XP/2003/Vista/7, Linux , Mac 10 OS and ...