HP External Dvd WriterThis external ultra-slim USB DVD burner supports all popular DVD and CD formats, single or double-layer. Suitable for desktop PCs or a laptops.The HP USB External CD/DVD Drive is a RW Ultra slim optical drive with an ultra speed. This DVD /RW device uses usb 2.0(840 mbps), transfers power and data via single usb cable and only 20mm thick. Burn your cds/dvds and do more at fast speed