Samsung SE-208DB/TSBS 8X Slim Portable CD DVD External Burner Writer Drive in Retail Box + Installation Disc + USB Cable (Black) Drive Type: Slim External Tray-loading DVD+/-RW Drive Interface: USB 2.0 Average Seek Time: DVD-ROM Access Time: 150ms; CD-ROM Access Time: 150ms; Cache: 1MB Read Speed: DVD-ROM: 8X; CD-ROM: 24X Write Speed: DVD+R: 8X; DVD+RW: 8X; DVD-R: 8X; DVD-RW: 6X; CD-R: 24X; CD-RW: 24X; DCD+R DL: 6X; DVD-R DL: 6X; DVD-Ram: 5X