ThinkPad UltraSlim USB DVD Burner - a small form factor external portable DVD and CD recordable drive that can be attached to Notebooks with USB2.0 port or USB3.0 port. The 9.5 mm UltraSlim engine (20% slimmer than previous the DVD Burner) with premium outlook means that the ThinkPad UltraSlim USB DVD Burner brings you the best user experience.Conforms with industry standard specifications for the following types of media: CD-R, CD-ROM, CD-RW, DVD-R, DVD-R (dual-layer recording), DVD-RAM, DVD-RW