It is a tray loading external portable ODD caddy which is suitable for USB 2.0/ 3.0 connector desktop or laptop Compatible with USB3.0 port and downward compatible with USB2.0 Embedded USB cable design, convenient to use Rhombus design surface, special look No extra drive, plug and play Note: DVD IS NOT INCLUDED! Specification: Interface: USB Material: ABS Cache speed: 2MB Support operating systems: MacOSX WIN98SE / ME / 2000 /XP WIN7 or WIN8 WIN10 Recording speed: CD-R 24X/ CD-RW 4X/DVD-R 8X /DVD-RW 6X /DVD-R DL 6X/DVD/RAM 5X / DVD+R 8X/ DVD+RW 8X /DVD+R DL 6X Reading speed: CD-ROM 24X/CD-R24X / CD-RW24X /DVD-ROM SL 6X/ DVD-R 8X /DVD-RW4X / DVD+R8X / DVD+RW8X/ DVD+R DL 6X Product size: about 14.5 x 14 x 1.8cm Package included: 1 x Rhombus Shape External Optical Drive DVD-RW 1 x Manual Manual Accessories only, other items not included