Transcend Portable DVD Writer Black. Product colour: Black. Optical drive type: DVD±R/RW, Interface: USB 2.0, Disc types supported: CD-R, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RAM, DVD-RW. Width: 142.8 mm, Depth: 13.9 mm, Height: 148 mm. Number of optical discs: 1 discs