External DVD drive with CD burner (COMBO), USB interface, readable CD, VCD, DVD, MP3 discs can also burn CD discs. Universal for laptops and desktops. Especially suitable for the popular 10-inch netbook to install the system! Applicable types: notebook, desktop, netbook, all-in-one Installation method: external, USB interface plug and play CD-ROM type COMBO DVD-ROM Interface type: USB2.0 DVD reading speed: 8X, CD reading speed: 24X Burning CD speed: 24X DVD does not support burning Cache: 2M Voltage: 5V Interface: USB 2.0 backward compatible with USB 1.0/1.1 (one of the square port is a USB data cable, which must be connected. The round port is a USB cable, which is used when the power supply is insufficient, and it does not matter if it is connected at ordinary times.) 1. Support for Windows 98SE/ME/2000/XP/WIN7/VISTA operating system, support for MAC OS8.6 or higher 2. Power saving design, extra strong error correction, shockproof, low noise; 3. Suitable for laptops, mobile PCs and compatible PCs 4. Power supply mode: USB bus power supply, using chip, no need for external power supply! 5. DOS boot: using chip, can be used to boot the installation system, support USB boot before booting Color:Black Material:Plastic + Metal Package Contents: 1set * USB 2.0 optical drive recorders